FADE IN:
EXT. CONTINENTAL DIVIDE - NIGHT - 1944
A winter storm erases the mountains. White over black. Wind
screams through a notch of the Rockies where nothing should
be working after dark.
SUPER: COLORADO, 1944
Halfway up the slope, canvas tents and Army floodlights cling
to the mountain around a RAW TUNNEL MOUTH blasted into
granite.
A hand-painted board reads: U.S. WAR DEPARTMENT - PROJECT
ORPHEUS. Inside the cut, SOLDIERS haul cable and timber.
Their faces are hollow with cold and no sleep.
A young Army engineer, CAPTAIN ELIAS VOSS, 32, pushes through
the blowing snow toward a steel bulkhead newly welded into
the rock.
Two MILITARY POLICE hold rifles on the door. Something THUMPS
from the other side. Then a man's voice.
VOICE (O.S.)
Elias.
VOICE (O.S.) (CONT’D)
Open the door.
One MP looks at him.
MP
That's Mercer.
VOSS
Mercer's dead.
VOICE (O.S.)
Elias. It's cold.
A second voice joins it. A WOMAN this time.
WOMAN'S VOICE (O.S.)
Please.
Then a CHILD.
CHILD'S VOICE (O.S.)
Daddy?
The steel shivers under a heavy impact. Voss steps closer.
The first MP grabs his sleeve.
MP
Sir.
Voss comes back to himself.
He pulls a grease pencil from his coat and writes across the
bulkhead in block letters:
DO NOT ANSWER THE VOICES. He turns to a waiting WELDER.
VOSS
Seal the outer drift... All of it.
WELDER
There's still men in there.
VOSS
No.
(beat)
There aren't.
The welder lowers his mask. Blue flame blooms. From behind
the door, Voss's own voice whispers --
VOSS'S VOICE (O.S.)
Don't leave me.
Voss stares at the steel as the torch begins to cut the world
in two.
SMASH CUT TO:
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Scene
2 -
Into the Mountain
EXT. INTERSTATE 70 - AFTERNOON - PRESENT DAY
A river of brake lights crawls west beneath a darkening sky.
SUPER: PRESENT DAY
Snow lashes windshields. Plows throw rooster tails of powder.
Electronic signs flash:
WINTER STORM WARNING
CHAIN LAW IN EFFECT
LOVELAND PASS CLOSED
A white CDOT Ford pickup threads past stalled traffic toward
the EISENHOWER-JOHNSON MEMORIAL TUNNEL.
INT. CDOT PICKUP - CONTINUOUS
MARA KEENE, 42, drives with both hands fixed at ten and two.
Smart, contained, built from checklists and scar tissue.
Beside her, NOAH KEENE, 15, hoodie up, records the storm on a
handheld audio recorder.
NOAH
Wind's clipping the mic.
MARA
Then point it away from the window.
NOAH
It's supposed to sound like
weather.
MARA
Weather doesn't care what it's
supposed to sound like.
Noah gives her a look. Stops recording. His phone lights with
a text from DAD: I'M SORRY, BUD. ROADS ARE A MESS. NEXT
WEEKEND? Noah locks the screen before Mara can see.
MARA (CONT’D)
Your dad make it to Boulder?
NOAH
Yep.
MARA
Okay.
He waits for more. Nothing.
NOAH
You said dinner.
MARA
I know.
NOAH
Not tunnel dinner.
MARA
I know what I said.
Mara glances at him.
MARA (CONT’D)
Two hours. I sign off on the
ventilation cutover, we go down to
Dillon, burgers, fries, no phones.
NOAH
Your phone will explode if you
don't touch it for a whole meal.
MARA
Good. Maybe then it’ll pay for
college.
Ahead, the tunnel mouth swallows traffic.
NOAH
You ever think it's weird? Driving
into a mountain.
MARA
Every day.
She accelerates toward it.
INT. EISENHOWER TUNNEL - WESTBOUND BORE - AFTERNOON
Tile walls. Sodium light. Fans humming above thousands of
tons of stone.
Mara's truck passes stopped semis and chained SUVs.
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Scene
3 -
Stop Drilling
INT. TUNNEL OPERATIONS CENTER - AFTERNOON
Banks of monitors show both bores, portals, weather stations,
ventilation readouts. WALT MERCER, 63, tunnel superintendent,
silver mustache, old-school competence, spots Mara as she
enters.
WALT
Look what the storm dragged in.
MARA
You asked me to come.
WALT
Yeah. I was hoping you'd bring
better company.
He offers Noah a fist bump. Noah leaves him hanging.
NOAH
You say that every time.
WALT
And one day you'll appreciate the
consistency.
Mara sets down a hard case of diagrams.
Across the room, LUCAS ROURKE, 47, a contractor dressed one
tax bracket above the crew, argues with HANNAH CHO, 34, a
project geologist with no patience for being talked over.
HANNAH
The probe lost resistance at
fourteen feet. That's a void.
ROURKE
It's fractured rock.
HANNAH
Fractured rock doesn't return a
clean acoustic boundary.
MARA
What's going on?
Rourke turns on the charm.
ROURKE
Nothing. Hannah found an anomaly
behind the new conduit bore.
HANNAH
A cavity.
MARA
How big?
HANNAH
Don't know yet.
ROURKE
Because every anomaly isn't an
emergency.
MARA
Then stopping for an hour won't
hurt.
ROURKE
We're twelve days behind on a four-
week closure. At some point delay
becomes its own safety problem.
MARA
Now you're twelve days and one hour
behind.
Rourke's smile hardens.
MARA (CONT’D)
Stop drilling.
He nods to a FOREMAN through the glass. Noah watches his
mother win another small war.
NOAH
Can I go see the big fans?
MARA
No.
WALT
I can take him.
MARA
Still no.
NOAH
I'm fifteen.
MARA
Exactly. Prime age for organized
resentment.
She points to an empty workstation.
MARA (CONT’D)
Homework.
NOAH
Two hours is starting to feel
optimistic.
WALT
Give it time. Place hates
everybody.
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Scene
4 -
The Hollow Signal
INT. SERVICE GALLERY - LATER
The ventilation upgrade site is raw concrete, temporary
lighting, cable reels, and a core drilling rig aimed into the
rock beyond the finished tunnel wall.
BRYCE MULLEN, 28, laborer, taps the drilled face with a
hammer. A hollow TONK. PETE KINCAID, 41, electrician, leans
in.
PETE
That's not rock.
BRYCE
No kidding.
Hannah crouches beside the core sample rack. A fourteen-foot
cylinder ends abruptly in empty air.
HANNAH
Nobody touches it until Mara gets
down here.
Rourke checks his watch.
ROURKE
We can scope it without advancing
the bore.
HANNAH
That's touching it.
ROURKE
Bryce. Fiber camera.
Bryce grins, happy to be useful. He feeds a slim inspection
camera through the drill hole.
On a tablet screen: darkness. Dust. Then... stonework. An old
timber brace.
PETE
What the hell is that?
Bryce pushes farther. The image shakes. A rusted sign appears
under eighty years of mineral stain.
Only part of the lettering remains:
...RPHEUS
HANNAH
Pull it back.
A whisper crackles from the camera's tiny microphone.
BRYCE
Hold up.
BRYCE'S VOICE (ON TABLET)
Hold up.
PETE
That's playback.
HANNAH
No. It's live.
BRYCE'S VOICE (ON TABLET)
That's playback.
Rourke stares at the screen.
ROURKE
Pull it.
Bryce yanks the cable. Something on the other side pulls
back.
BRYCE
What the --
The cable snaps taut -- then releases so violently Bryce
falls backward.
The camera whips from the hole. Its lens is cracked. A smear
of dark blood across it.
BRYCE (CONT’D)
That's not mine.
A deep vibration rolls through the concrete. The lights
flicker.
From beyond the wall:
KNOCK.
KNOCK.
KNOCK.
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Scene
5 -
The Breach
EXT. EAST PORTAL - LATE AFTERNOON
Snow comes sideways now. Traffic inches into the tunnel
beneath avalanche terrain disappearing in cloud.
High above, a shelf of snow fractures with a sound too deep
to hear through the storm.
INT. TUNNEL OPERATIONS CENTER - SAME
Walt checks weather feeds.
WALT
Loveland sensor's offline.
Mara watches the gallery feed.
MARA
Why is Rourke still down there?
She grabs her radio.
MARA (INTO RADIO) (CONT’D)
Lucas, back away from the bore. I'm
coming down.
Static.
ROURKE (V.O.)
Copy.
Mara turns to Noah.
MARA
Stay here.
NOAH
Where else am I gonna go?
MARA
Noah.
NOAH
I know. Stay put. Don’t die.
Noah looks at the monitor showing the strange drilled wall.
He turns his recorder back on.
INT. SERVICE GALLERY - MINUTES LATER
Mara arrives with Walt. Hannah shows her the sample and
cracked camera.
MARA
You scoped it after I said stop?
Rourke doesn't answer fast enough.
MARA (CONT’D)
That's what I thought.
Walt shines his flashlight into the drill hole.
WALT
Old work.
MARA
How old?
WALT
Older than us.
BRYCE
Something grabbed the camera.
ROURKE
(scoffs)
Cable snagged.
BRYCE
Cable doesn't bleed.
Mara leans toward the hole. A faint air current brushes her
face.
MARA
Pressure differential.
HANNAH
Then it must connect somewhere.
Mara studies the bore.
MARA
We seal this and report it.
ROURKE
Report what? A utility cavity?
MARA
An undocumented structure behind a
federal transportation asset.
ROURKE
You call that in tonight, every
agency with a badge and a clipboard
shuts us down until summer.
MARA
Then summer it is.
A sharp CRACK comes from the wall. Dust sprinkles down. The
drilled face fractures along a hidden seam.
BRYCE
Uh -- Mara?
The wall gives. A six-foot section collapses inward with a
thunderous BOOM. Black dust billows.
When the dust clears, another passage emerges behind the
tunnel -- narrow, timber-braced, swallowed by black.
Walt sweeps his flashlight across the stone. It catches on a
corroded metal placard bolted into the wall.
U.S. WAR DEPARTMENT
PROJECT ORPHEUS
AUTHORIZED PERSONNEL ONLY
WALT
Well.
ROURKE
For now, this doesn't leave the
site.
MARA
There it is.
Bryce edges toward the opening.
MARA (CONT’D)
Bryce, stay back.
BRYCE
I hear something.
VOICE (O.S.)
Help me.
Bryce's face drains.
BRYCE
That's my brother...
PETE
What?
BRYCE
That's Danny.
VOICE (O.S.)
Bryce. Please.
Bryce steps into the opening. Mara catches his arm.
MARA
You’re just hearing things. That’s
not your brother.
Bryce looks at her.
BRYCE
He died in '19.
VOICE (O.S.)
Bryce.
Mara pulls him back hard.
MARA
Everybody out. Now.
Something moves in the darkness. Bryce jerks backward as if
yanked by a cable. His hand slips from Mara's.
BRYCE
MARA --
He vanishes into the passage. Pete lunges after him.
MARA
No!
Bryce screams once. The tunnel lights go out.
BLACK.
Emergency strobes kick on red.
Mara backs everyone away from the breach.
BRYCE'S VOICE (O.S.)
I'm okay.
Pete starts toward it.
MARA
Don't.
PETE
He's alive.
BRYCE'S VOICE (O.S.)
Pete. I'm okay.
Mara hears something in the cadence.
MARA
Bryce, what's my last name?
Mara looks at Walt.
WALT
Back up.
A shape crosses the far end of the passage -- LOW, PALE,
FAST.
For half a second, a mountain lion. Then it folds sideways
and vanishes into the rock.
Rourke raises his phone, filming. Mara smacks it down.
MARA
Move.
Mara drives them away from the breach. Fast.
Pete keeps looking back.
PETE
We can't leave him.
MARA
Keep moving.
PETE
You heard him.
Mara stops.
Behind them, somewhere beyond the locked gallery --
BRYCE'S VOICE (O.S.)
I'm okay.
Pete turns toward it.
Mara grabs him.
MARA
That's not Bryce.
PETE
You don't know that.
MARA
Neither do you.
Another distant THUMP.
Walt takes Pete by the shoulder.
WALT
Come on.
Pete reluctantly moves.
Mara doesn't. She looks at her hand. A smear of Bryce's blood
across her palm.
Rourke watches her.
ROURKE
There was nothing you could've
done.
Mara looks at him.
MARA
Don't.
ROURKE
I'm serious.
MARA
That's the problem.
She wipes the blood onto her pants. Turns back toward the
breach.
WALT
Mara.
MARA
I had him.
Walt steps beside her.
WALT
You had his hand.
(beat)
Something else had the rest of him.
From the darkness --
BRYCE'S VOICE (O.S.)
Mara.
She stiffens.
WALT
Don't give it anything else.
Mara finally turns away.
MARA
Seal every access behind us.
They move.
Behind them --
BRYCE'S VOICE (O.S.)
Mara.
This time, she doesn't look back.
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Scene
6 -
Collapse
INT. WESTBOUND BORE - SAME
Traffic has stopped completely. Drivers step out, looking
toward the portal glow far behind them. A STATE TROOPER,
DEVON PRICE, 36, works his way between vehicles.
DEVON
Stay in your cars. Engines off if
you're stationary. Keep the lane
clear.
A woman points east.
WOMAN
What's happening?
DEVON
Weather hold.
Then -- the tunnel SHUDDERS. Lights sway. A distant BOOM
rolls through the bore. People scream.
Devon looks toward the east portal. The daylight disappears
behind a boiling cloud of white.
INT. OPERATIONS CENTER - SAME
Noah watches camera feeds pop to static one after another.
Noah grabs a radio.
NOAH
Mom?
Static. He switches channels.
NOAH (CONT’D)
Mom, answer.
MARA (V.O.)
I'm here.
MARA (V.O.)
Stay in control.
NOAH
What happened?
MARA (V.O.)
We had a collapse.
The whole building trembles again. Walt's voice comes over
another channel.
WALT (V.O.)
East portal's buried.
Noah stares at the monitor. Then another alert. WEST PORTAL
CAMERA - SIGNAL LOST.
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Scene
7 -
The Voice Behind the Gate
INT. SERVICE GALLERY - MINUTES LATER
Mara, Walt, Hannah, Rourke and Pete reach a heavy rolling
maintenance gate. Mara and Walt drag it across the breached
passage access. Mara slams the mechanical lock home.
BANG.
Something hits the other side.
BANG.
BRYCE'S VOICE (O.S.)
Pete.
PETE
Jesus Christ.
MARA
Don’t answer it.
BRYCE'S VOICE (O.S.)
Pete, open the gate.
BANG. The steel bows inward a fraction.
ROURKE
What the fuck?
MARA
That’s not Bryce.
WALT
Let’s move.
They leave the gate rattling behind them.
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Scene
8 -
The Voice in the Static
INT. OPERATIONS CENTER - LATER
The room has become a command post. Radios chatter. Noah sits
against the far wall, watching.
Rourke stands apart from the room. Checks his phone. One weak
bar flickers in and out.
He immediately opens a contact:
CLAIRE
He hits CALL. One ring. Then -- VOICEMAIL.
Rourke disconnects before the greeting finishes.
Noah notices from across the room.
Rourke catches him looking. Pockets the phone.
Devon enters with NISHA PATEL, 35, an ER nurse with blood on
one sleeve, and THEO GRANT, 48, a trucker helping manage the
stranded drivers.
Theo wears a battered brass truck key on a red woven lanyard
around his wrist.
DEVON
Sixty vehicles westbound. Thirty
east. Minor injuries so far.
NISHA
For now.
MARA
Portal access?
DEVON
East is buried. West slid again.
Nobody gets through until avalanche
control clears the slopes.
WALT
Hours.
DEVON
At least.
Nisha eyes the ventilation schematic.
NISHA
Air?
MARA
Emergency fans are running.
An indicator flips amber.
MARA (CONT’D)
For now.
NOAH
What was in the wall?
MARA
Nothing you need to worry about.
NOAH
You only say that when it’s bad.
MARA
Noah --
A SCREAM erupts from a radio.
PETE (V.O.)
Gate! Gate! Gate!
Mara grabs it.
MARA
Pete. Where are you?
PETE (V.O.)
Service gallery. It got through --
A wet burst of static.
Everyone freezes.
Mara lowers the radio.
DEVON
What?
MARA
Nobody goes anywhere alone.
ROURKE
Mara --
MARA
And nobody follows a voice they
can't see.
THEO
What the hell does that mean?
MARA
I don’t know what it is.
She looks at the radio.
MARA (CONT’D)
But Bryce disappeared. Then I heard
his voice.
ROURKE
That doesn't mean --
HANNAH
Something made the sound.
Silence.
Noah quietly clicks on his recorder.
INT. WESTBOUND BORE - NIGHT
Devon and Theo move among trapped motorists, organizing them
into groups. Mara uses the PA.
MARA (V.O.)
Attention. Due to avalanche
closures, both portals are
temporarily inaccessible. Please
remain calm. Turn off your engines.
Staff will move you to designated
refuge areas.
People look up at ceiling speakers. A toddler cries. A skier
in a puffy jacket films herself.
A sudden metallic CLANG echoes from a service door. A man's
voice comes through it.
PETE'S VOICE (O.S.)
Open up.
Devon draws his sidearm.
PETE'S VOICE (O.S.) (CONT’D)
Open the door.
Devon looks to Mara, who has just arrived.
MARA
Pete?
PETE'S VOICE (O.S.)
I'm okay.
Noah, behind Mara despite her order, whispers --
NOAH
He says that a lot.
MARA
What are you doing here?
NOAH
I don’t want to be alone in the
control room.
MARA
Walt was there.
NOAH
Walt left.
The handle on the service door slowly turns. Mara pushes Noah
behind her.
The door opens three inches. A bloody hand appears. Pete
stumbles through. His face is gray with shock.
PETE
Close it.
Devon yanks him clear. Mara slams the door. Something hits it
from the other side. Pete curls on the pavement. Nisha drops
beside him.
MARA
Where's Bryce?
Pete shakes his head.
PETE
It was talking from everywhere.
MARA
What was? Did you see it?
PETE
No. Yes. I don't know.
He looks at Noah's recorder.
PETE (CONT’D)
Turn that off.
(beat)
It likes sound.
The door behind them rattles.
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Scene
9 -
The Breach Route
INT. REFUGE ROOM - NIGHT
A concrete emergency refuge space becomes triage. Nisha
cleans Pete's cuts. Mara paces with a map. Walt joins her.
WALT
Emergency generators at seventy-one
percent. Main feed's down at the
east substation.
MARA
Fans?
WALT
We can run full ventilation four
hours. Maybe five if I cycle zones.
MARA
Rescue estimate?
WALT
Six minimum.
Mara absorbs that.
WALT (CONT’D)
We've got one hundred and twelve
people in here breathing, panicking
and making heat.
MARA
What about the summit utility
ascent?
WALT
Old inspection route. Starts behind
Gallery C. Climbs above the west
bore.
MARA
Where does it come out?
WALT
Maintenance shack near the divide.
MARA
Can we move people through it?
WALT
Not all of them. Not fast.
MARA
We don't need everyone. We need a
team out to reach rescue and open
the portals from the outside.
Walt points to the map.
WALT
Only way to Gallery C is through
the service spine. Same service
spine as the breach.
Mara looks toward Pete.
MARA
Then we figure out what we're
dealing with.
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Scene
10 -
Do Not Answer the Voices
INT. SERVICE SPINE - NIGHT
Mara leads a small reconnaissance team: Devon, Walt, Hannah,
Rourke, Theo and Pete.
They carry radios, flashlights, two rifles from tunnel
emergency storage, and a coil of rope.
The corridor is narrow, utilitarian. Every sound travels.
Devon stops at the threshold. Just half a beat. Theo notices.
THEO
You good?
DEVON
I like rooms with two exits.
He enters anyway.
Walt raises a hand.
From a duct overhead:
BRYCE'S VOICE (O.S.)
Help me.
MARA
Bryce, what was your brother’s
name?
BRYCE'S VOICE (O.S.)
Help me.
DEVON
So it repeats.
HANNAH
At least some of the time.
A second voice from farther ahead:
MARA'S VOICE (O.S.)
Everybody out. Now.
Mara's face tightens.
THEO
That's creepy as hell.
His own voice answers from the darkness behind them:
THEO'S VOICE (O.S.)
Creepy as hell.
MARA
Lights on the floor. Stop feeding
it sentences.
They continue in silence.
INT. GALLERY C - NIGHT
A forgotten section of tunnel infrastructure. Walt unlocks a
rusted fire door.
Behind it, newer conduit gives way to older stone. And
another steel door.
Stamped into the metal: WAR DEPARTMENT - 1944
Walt wipes grime from the wall beside it.
Under layers of paint, grease-pencil letters emerge:
DO NOT ANSWER THE VOICES.
From behind the door:
PETE'S VOICE (O.S.)
I'm okay.
Pete backs away.
MARA
Walt, has this always been here?
WALT
Forty-two years in this tunnel.
Never knew this room existed.
Hannah studies the surrounding rock.
HANNAH
This was deliberately boxed into
the later construction.
Rourke stares at the warning.
MARA
You knew about a void.
ROURKE
I knew there was an anomaly.
MARA
How long?
ROURKE
A month.
Hannah whips toward him.
HANNAH
You said the scan was noise.
ROURKE
The client wanted schedule
certainty.
MARA
You buried a geological anomaly
beneath an active tunnel because of
schedule certainty?
ROURKE
I didn't know there was a World War
Two bunker full of whatever the
hell this is.
DEVON
Great defense.
A radio on Rourke's belt crackles.
NOAH (V.O.)
Mom?
Mara grabs hers.
MARA
Noah, I told you stay in control.
NOAH (V.O.)
I am.
NOAH (V.O.)
There's a man here asking for you.
MARA
What man?
NOAH (V.O.)
He says his name is Bryce.
MARA
Noah, lock the door.
NOAH (V.O.)
Mom --
MARA
Lock it now.
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Scene
11 -
The Puppet
INT. OPERATIONS CENTER CORRIDOR - NIGHT
Mara's team barrels around the corner.
A figure stands outside the control-room glass. Blood down
his shirt. Head bowed. Bryce lifts his face. His eyes are
terrified.
BRYCE
Mara.
MARA
Where were you?
BRYCE
It took me down the old drift.
He coughs blood.
BRYCE (CONT’D)
I got away.
Noah watches from behind locked glass. Mara studies Bryce.
MARA
What's your brother's name?
BRYCE
Danny.
Mara and Devon exchange a look.
MARA
What did he call you?
Bryce's face goes blank.
BRYCE
Danny.
Bryce's body jerks sideways.
Something in the dark behind him is holding him upright like
a puppet.
A long, pale forelimb snakes around his torso -- hairless,
jointed wrong, ending in black hooked claws that press into
his chest.
Bryce's mouth opens.
BRYCE (CONT’D)
I'm okay.
The creature yanks him backward into darkness. Devon fires
twice.
Muzzle flashes reveal it in fragments:
A long, feline body stripped of fur. Gray-white hide
stretched over enormous hindquarters. Forelegs too long for
the body, ending in narrow paws that flex almost like hands.
A skull that almost resembles a mountain lion's -- almost. No
eyes. Only cloudy membranes sealed over collapsed sockets.
INT. OPERATIONS CENTER - MOMENTS LATER
Mara unlocks the glass door and pulls Noah into her arms. He
is shaking.
NOAH
What happened to Bryce?
MARA
It was using him.
NOAH
What was?
Hannah keeps staring toward the corridor.
HANNAH
Did anybody else see the back legs?
DEVON
I saw enough.
HANNAH
They were... feline.
Mara looks at her.
HANNAH (CONT’D)
Feline-adjacent.
WALT
That's comforting.
Devon reloads with hands steadier than his breathing.
DEVON
Rounds hit something.
Nisha appears with a first-aid bag.
NISHA
Anybody hit?
Mara shakes her head. Rourke presses himself against a
console, staring at the dark hallway.
ROURKE
We stay here. We seal every door
and wait for rescue.
MARA
Air won't last.
ROURKE
Then cycle the fans.
WALT
Main power's dead and the emergency
plant is dropping faster than
forecast.
ROURKE
So fix it.
WALT
Wonderful. Why didn't I think of
that?
Mara spreads the tunnel plan on a console.
MARA
The summit ascent is still our best
route. We get a team topside,
contact avalanche crews directly,
bring portable ventilation or start
clearing a portal from outside.
DEVON
And the thing between us and the
ascent?
MARA
We learn how it hunts.
NOAH
Sound.
Everyone looks at him.
NOAH (CONT’D)
It keeps repeating what it hears.
HANNAH
Could be echolocation.
THEO
Like a bat?
Noah holds up his recorder.
NOAH
Then we give it sound somewhere
else.
Mara stares at the little device.
MARA
Show me what you recorded.
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Scene
12 -
The Mimic's Flaw
INT. OPERATIONS CENTER - LATER
Noah scrubs through the breach recording. The others gather
behind him.
He hits PLAY.
BRYCE (RECORDING)
Hold up.
Static. Footsteps.
Then --
BRYCE'S VOICE (RECORDING)
Hold up.
Same voice. Almost.
Noah plays them again.
BRYCE (RECORDING)
Hold up.
BRYCE'S VOICE (RECORDING)
Hold up.
Hannah leans closer.
HANNAH
What's different?
Noah expands the waveforms.
NOAH
The breath.
MARA
What breath?
NOAH
The first one inhales.
He points to the second waveform.
NOAH (CONT’D)
This one doesn't.
(beat)
It copied the words.
Not the person.
The room goes still.
HANNAH
Try something longer.
Noah finds another clip.
ROURKE (RECORDING)
Nobody says a word until we know
what this is.
A few seconds later --
ROURKE'S VOICE (RECORDING)
Nobody says a word until we know
what this is.
Perfect cadence. Too perfect.
NISHA
Could you tell in the dark?
NOAH
Maybe.
DEVON
Maybe doesn't help much when it's
standing behind you.
Mara looks to the PA routing panel.
MARA
It doesn't have to.
She crosses to it.
MARA (CONT’D)
We can send audio into individual
maintenance zones.
WALT
Not the old drift.
MARA
The service spine.
She traces a route across the panel -- away from them.
MARA (CONT’D)
We give it something to follow.
NOAH
A decoy.
Mara looks at him.
MARA
A decoy.
A faint smile from Noah.
Then a SPEAKER somewhere deep in the tunnel crackles to life.
EXT. EAST PORTAL - NIGHT
Avalanche crews work under portable floodlights far below
unstable slopes. A SNOWCAT crawls toward the buried portal. A
FOREMAN on radio watches radar.
FOREMAN
Tunnel command, this is East
Rescue. We have you on hardline but
not radio. Estimate first access
three hours minimum. Do you copy?
Only static answers. High above them, another crown line
appears in the snowpack.
Genres:
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Scene
13 -
The Voice from the Dark
INT. WESTBOUND BORE - NIGHT
Mara addresses the trapped motorists in person now. Some are
frightened. Some angry. A MAN in ski gear steps forward.
SKIER
My wife is eight months pregnant.
You're telling us we just sit here?
MARA
I'm telling you we have an unknown
hazard in the service system and
unstable avalanche conditions
outside.
SKIER
Then let us walk out.
DEVON
Both portals are buried.
SKIER
You expect us to believe that?
Theo points toward the west.
THEO
Go take a look. Bring a shovel.
Nisha steps up.
NISHA
Listen to me. Carbon monoxide is
the real clock right now. Shut off
engines. Don't burn camp stoves.
Stay with your group. If you have
asthma, heart disease, oxygen,
medication -- tell me now.
Then from an overhead speaker, a woman's voice:
WOMAN'S VOICE (PA)
Help me.
Mara's blood runs cold.
WALT
That channel's off.
WOMAN'S VOICE (PA)
Please.
NOAH
It found a microphone.
Genres:
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Scene
14 -
The Door
INT. OPERATIONS CENTER - NIGHT
Mara kills power to the maintenance intercom circuit. The
voice stops.
MARA
No open microphones. Radios on push-
to-talk only. Nobody leaves a
handset unattended.
Rourke is staring at a file directory on one of the
engineering terminals.
HANNAH
What are you doing?
He closes it.
HANNAH (CONT’D)
What was that?
ROURKE
Nothing.
Hannah reaches past him and reopens the directory. SUBSURFACE
RISK / CLIENT PRIVILEGED Her face changes.
HANNAH
You had historical survey
references.
Hannah opens a scanned 1972 construction memorandum.
"UNMAPPED MILITARY EXCAVATIONS REPORTED IN VICINITY OF
PROPOSED BORE. ACCESS SEALED. NO FURTHER INVESTIGATION
REQUESTED."
MARA
You knew there were military
workings.
ROURKE
I knew there was a reference to
military workings.
HANNAH
You deleted it from my field
package.
ROURKE
I marked it non-actionable.
HANNAH
You told me if I kept flagging
voids, you'd replace me.
ROURKE
Hannah --
HANNAH
And I stayed anyway.
ROURKE
That memo goes upstairs, the job
stops for six months.
MARA
So you made sure nobody could ask
the question.
ROURKE
I made a judgment call.
MARA
You made it impossible for anyone
else to make one.
Rourke looks toward the dark service corridor.
MARA (CONT’D)
Whatever that thing is, you gave it
a door.
Rourke's anger flashes -- then dies.
ROURKE
Yeah.
(beat)
I did.
Devon watches him.
DEVON
If we get out of here, you're going
to explain that sentence to a lot
of people.
People gear up around them.
Mara checks batteries, radios, ammunition.
Noah stands beside her with his recorder.
NOAH
Is Bryce dead?
Mara keeps packing.
MARA
I don't know.
NOAH
You think he is.
She stops.
MARA
I think whatever took him is still
between us and the way out.
NOAH
That's not what I asked.
Mara looks at him.
NOAH (CONT’D)
You do that.
MARA
Do what?
NOAH
Turn questions into problems.
MARA
Problems I can do something about.
NOAH
Okay.
A beat.
NOAH (CONT’D)
What can you do about Bryce?
MARA
Nothing.
Noah nods.
MARA (CONT’D)
That's not the same as giving up.
NOAH
I know.
She checks the batteries in his recorder.
MARA
Full charge?
NOAH
Ninety-three.
MARA
That's not full.
NOAH
It's emotionally full.
She almost smiles.
MARA
Spare batteries.
NOAH
Already packed.
Mara looks at him. He's scared. So is she.
MARA
Stay close to me.
NOAH
I thought I wasn't coming.
Mara takes his recorder. Studies it. Hands it back.
MARA
I'm still deciding.
Genres:
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Scene
15 -
The Recorder's Keeper
INT. WESTBOUND BORE - LATER
The evacuation team gears up at a maintenance door.
Mara, Devon, Hannah, Walt, Theo and Rourke shoulder packs.
Nisha stays with the civilians.
Noah steps in with his backpack.
MARA
No.
NOAH
You need the recorder.
MARA
I can carry it.
NOAH
Can you cut clips? Route them?
Change gain on the move?
MARA
I can figure it out.
NOAH
Out there?
That stops her. Walt looks away, hiding a smile.
MARA
You're staying here.
NOAH
I'm the only one who can tell you
when a voice is wrong.
MARA
You're fifteen.
NOAH
And useful.
A beat.
MARA
You're my son.
NOAH
Then keep me where you can see me.
Mara looks at the route. Then at him.
DEVON
He stays between me and Walt. No
wandering.
MARA
I didn't ask.
DEVON
I know.
Mara points at Noah.
MARA
You do exactly what I say.
NOAH
Exactly.
MARA
No improvising.
NOAH
That's usually your thing.
Mara gives him a look.
NOAH (CONT’D)
Exactly what you say.
Genres:
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Scene
16 -
The Catwalk
INT. SERVICE SPINE - NIGHT
Walt activates Zone 4 speakers.
Through the corridor ahead, a recording of Theo's voice plays
from a distant speaker:
THEO (RECORDING)
Hey! Over here!
Something scrapes in the ceiling. Moves away from them. Noah
watches the levels on his recorder.
NOAH
It's following.
They move the opposite direction. Silent boots. Controlled
breaths. At an intersection Walt triggers another speaker.
THEO (RECORDING)
Over here!
NOAH
It's following.
They reach the next junction.
Walt raises the control.
MARA
Wait.
Everyone stops.
NOAH
What?
Mara looks behind them. Then toward the speaker.
MARA
We did the same thing twice.
A faint metallic TICK ahead.
Not behind them. Ahead.
Noah understands.
NOAH
It learned the pattern.
Another TICK. Closer.
MARA
Sound there. People move away from
it.
DEVON
It doesn’t have to know why.
From the darkness ahead --
ROURKE'S VOICE (O.S.)
It works.
Rourke goes pale.
NOAH
It doesn't understand us.
(beat)
It predicts us.
MARA
New rule. Nothing twice.
The alternate route narrows.
Ahead --
A grated steel catwalk crosses a deep utility bay packed with
pipes, conduit and old ventilation trunks.
No concrete floor. Just steel suspended over darkness.
Walt steps onto it.
CLANG.
Everyone freezes.
From somewhere in the walls --
SCRAPE.
Walt slowly lifts his boot.
Silence.
He steps again.
CLANG.
Another SCRAPE answers. Closer.
Mara raises a hand.
Nobody moves. Noah looks down.
A loose washer rests on a conduit beneath the grate.
It TREMBLES. Stops.
Noah shifts his weight.
The washer TREMBLES again.
Somewhere below --
SCRAPE.
NOAH
Mom.
MARA
I see it.
HANNAH
See what?
Noah points.
NOAH
It's not just listening.
Hannah watches the washer. Understanding.
HANNAH
Vibration.
WALT
Steel carries it.
A ventilation damper opens somewhere ahead.
WHOOOOSH.
Cold air tears sideways through the utility bay.
The SCRAPING below them stops.
Then resumes --
Twenty feet in the wrong direction.
Noah notices.
NOAH
It lost us.
The damper shuts.
Silence.
The SCRAPE immediately corrects course.
Coming toward them again.
Mara looks at the duct. Stores that away.
She looks across the catwalk. Forty feet. No other route.
MARA
One at a time.
Rourke almost laughs.
ROURKE
You've got to be kidding me.
MARA
Put your feet down soft.
DEVON
On a steel grate?
MARA
Do your best.
Walt crosses first. Slow.
Heel. Toe.
Heel. Toe.
Each step barely a sound.
Halfway across --
Something moves in the darkness beneath him.
Not seen. FELT.
The catwalk gives the faintest tremor.
Walt freezes. The tremor stops. He continues. Reaches the
other side.
Hannah follows. Then Devon. Theo. Each crossing slower than
the last.
Mara turns to Noah.
MARA (CONT’D)
You next.
Noah steps onto the grate. Careful.
A distant mechanical PULSE rolls through the structure.
THOOM.
Noah looks to Walt.
WALT
Vent damper cycling.
Another --
THOOM.
Noah times his next step with it.
THOOM. STEP.
THOOM. STEP.
Mara sees what he's doing.
MARA
Good.
Noah reaches the midpoint.
His recorder strap slips from his shoulder.
He catches it before it hits the grate.
Everyone exhales.
Then --
BZZZZZZ.
Rourke's phone vibrates against the steel buckle of his coat.
The sound is tiny.
The entire catwalk SHUDDERS.
Something SLAMS into the steel below Noah.
NOAH
Mom --
MARA
Don't move!
Rourke claws for the phone.
BZZZZZZ.
Another IMPACT.
Closer to Noah.
Rourke finds it. Kills the vibration.
Silence.
On the screen:
CLAIRE
Rourke stares at the name.
Then pockets the phone.
Below Noah --
A pale hand slowly curls around the underside of the grate.
Five black claws. Six inches beneath his shoe.
Noah sees them. Doesn't breathe.
The hand slides along the underside. Feeling. Searching.
Mara watches from the near side. Can't reach him.
Another damper cycle approaches --
THOOM.
Mara whispers --
MARA
On the next one.
Noah understands. The hand stops directly beneath him.
THOOM.
NOAH RUNS.
The creature EXPLODES upward.
Claws rip through the grate where Noah stood.
He dives onto solid concrete.
Mara races across behind him as the creature tears at the
catwalk from below.
DEVON
Move!
They run.
The steel SHRIEKS behind them.
Mara grabs Noah and drives him forward.
MARA
Still think ninety-three percent is
full?
NOAH
Not the time.
They disappear around the corner.
Behind them --
The catwalk tears loose and crashes into the darkness.
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Scene
17 -
Echoes in the Duct
INT. VENTILATION CHAMBER - NIGHT
A cathedral of machinery. Huge fan housings. Ducts wide
enough to drive a car through. Emergency lights leave deep
pockets of black. Walt checks a control cabinet.
WALT
Gallery C is across this chamber.
Something TICKS overhead. Mara hears it too.
MARA
Lights up.
Flashlights sweep the rafters.
One beam stops --
The creature is flattened along a steel truss twenty feet
overhead. Not hanging. PERCHED.
Hind legs folded beneath it like a cat waiting to spring.
Long forelimbs gripping the steel. Its tail -- nearly as long
as its body -- hangs perfectly still.
Then the tip twitches.
The creature DROPS.
Devon fires. The creature hits Theo, slamming him into a fan
housing. Mara grabs Noah and dives behind a motor cabinet.
Hannah screams as the creature crosses the floor on all fours
with impossible speed.
Walt hits an emergency switch. A giant ventilation fan begins
to spin. Slowly at first. The creature turns toward the
rising mechanical WHINE. Mara sees it.
MARA (CONT’D)
It hears the fan.
She grabs a steel pipe and hurls it into the opposite duct.
CLANG-CLANG-CLANG.
The creature launches after the sound. Its forelimb catches
Theo's leg and drags him.
THEO
No! No, no --
Devon grabs Theo's hands. For a moment -- Theo stretches
between man and creature.
Mara takes Devon's rifle and fires point-blank into the
creature's shoulder. Black blood spatters concrete.
The creature releases Theo and vanishes into the duct.
The fan reaches full speed. A wet SCREECH echoes from inside.
Theo gasps, leg shredded but attached. Hannah rips open a
trauma pack.
HANNAH
Tourniquet.
Mara stares into the spinning fan.
NOAH
Did we kill it?
From another duct, far away:
NOAH'S VOICE (O.S.)
Did we kill it?
Mara looks at her son.
Genres:
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Scene
18 -
Project Orpheus: Subject A
INT. GALLERY C - LATER
Theo lies on a maintenance sled, leg wrapped tight.
The team reaches the hidden War Department door. Mara unlocks
the old manual wheel. It does not move. Walt joins her.
Together they force it. The seal breaks with a breath of air
so cold it fogs around them.
Beyond -- a descending corridor lined in 1940s concrete.
ORPHEUS - LEVEL 1
Noah shines his light over the wall.
Mara checks behind them.
MARA
We don't go down unless it gets us
to the ascent.
Walt unfolds the 1972 overlay.
WALT
It does.
WALT (CONT’D)
This installation intersects the
old summit drift.
MARA
Then down is out.
Noah looks at the black corridor.
INT. PROJECT ORPHEUS - LEVEL 1 - NIGHT
Dust hangs untouched in flashlight beams. Desks. File
cabinets. Ceramic insulators. The place was abandoned fast.
Theo groans on the sled.
MARA
Find the route. Anything useful
comes with us.
Walt checks a faded wall map while Hannah pulls open a
swollen Army file. Cover sheet:
PROJECT ORPHEUS
ACOUSTIC RESPONSE STUDY
SUBJECT: UNKNOWN SUBTERRANEAN FAUNA
A photograph falls out. Three soldiers surround a pale
carcass strapped to a table. Feline hips. Long tail. Massive
rear legs. Forelimbs that reach nearly to the floor. A
classification card:
SUBJECT B
ORDER: CARNIVORA
FAMILY: ?
Noah stares.
NOAH
That looks like a mountain lion.
Hannah studies it.
HANNAH
Looks like.
Noah notices the designation.
NOAH
Subject B.
Walt looks at him.
WALT
Means there was an A.
Hannah scans the report.
HANNAH
“Exact acoustic retention after
single exposure.”
Noah looks toward the dark corridor behind them.
NOAH
It only has to hear you once.
Hannah keeps reading.
HANNAH
“Ocular structures vestigial. Broad-
spectrum noise produces severe
disorientation.”
Walt looks toward the ventilation ducts running through the
ceiling.
WALT
Fans.
Mara takes the report. Last paragraph stamped in red:
TERMINATE STUDY.
COLLAPSE ALL NATURAL ACCESS.
Beneath it:
SURFACE EXPOSURE TRIAL — SEE FILM RECORD.
Mara looks to Hannah.
MARA
Where?
Hannah shines her light through an open doorway. A 16mm
projector. Film cans. One marked:
SUBJECT A — EXTERIOR ORIENTATION.
Mara checks Theo. Checks the route.
MARA (CONT’D)
One reel.
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Scene
19 -
The Surface Trial
INT. ORPHEUS PROJECTION ROOM - NIGHT
A narrow room branches from the lab. A 16mm projector sits
beneath a canvas cover. Film cans are stacked by date. Hannah
opens one labeled SURFACE TRIAL - DEC 12 1944.
HANNAH
This might tell us what happened
outside.
Mara looks at the pounding route above, then at Noah.
MARA
One reel. Fast.
Walt powers the projector from their battery inverter. The
machine CHATTERS. On a stained white wall, black-and-white
film flickers to life --
A snowy military yard. Soldiers surround a steel cage. A
title card: SUBJECT A - EXTERIOR ORIENTATION.
The canvas is pulled away --
Inside, a smaller specimen crouches beneath canvas.
The shape beneath it could almost be a cougar in a zoo
transport cage -- long tail wrapped around its paws.
Until the canvas moves and an impossibly long forelimb slides
beneath the bars. A soldier rings a hand bell from thirty
yards away. The animal flinches at daylight. Its sealed eyes
offer no reaction. Its ears -- small slits tight against the
skull -- swivel independently toward the bell.
The creature turns accurately toward it. Another bell rings
from the opposite side. It turns again.
Then a wind machine starts. Canvas flags snap violently. The
creature's head jerks between conflicting sounds. It becomes
confused. Noah leans closer.
NOAH
It can't separate the signal from
the noise.
HANNAH
It isn't confused by the wind. It's
confused by too many directions at
once.
On film, a soldier approaches the cage. The creature appears
calm. The soldier says something to the camera crew. Silent
film. Then the cage door opens unexpectedly. The creature
explodes out. The camera whips sideways. A rifle fires with
no sound.
The image becomes chaotic -- snow, boots, a flash of pale
skin. Then the camera settles on the creature fifty yards
away. It is running in the wrong direction. Straight into a
snow fence. Unable to orient in the gusting wind.
Soldiers surround it and fire until it stops moving. The film
ends in white leader. The projector flaps. Mara looks at
Walt.
MARA
If we get it outside, the storm
hurts it.
WALT
If we get outside.
Noah spots another film can.
FINAL INCIDENT.
He reaches for it. Mara stops his hand.
MARA
We know enough.
NOAH
What if we don't?
MARA
Then we learn moving.
She shuts off the projector. In the sudden dark, the last
frame seems burned onto everyone's eyes.
A creature built like a mountain predator running blind
through snow -- not away from the soldiers. Away from the
wind.
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Scene
20 -
The Bulkhead Gambit
INT. ORPHEUS MESS HALL - NIGHT
Old tables bolted to the floor. A mural of mountain peaks
faded to brown. The route forks. Walt studies the map.
WALT
Summit drift should be through that
bulkhead.
The bulkhead is welded shut.
A message painted across it:
NO ACCESS BEYOND THIS POINT.
Mara shines her light on a second note beneath:
SHAFT TERMINATES AT SURFACE OBSERVATION POST.
MARA
That's our way out.
Hannah finds a cabinet with cutting tools.
HANNAH
Acetylene cylinders are empty.
Walt looks toward a power saw in their gear.
WALT
We can cut it, but everybody in
this mountain will hear us.
NOAH
Including it.
Mara studies the mess hall. Speakers. Old metal trays. Pipes.
MARA
Then we make it hear everything.
INT. ORPHEUS MESS HALL - LATER
The room ERUPTS with layered noise.
Recorded voices. Metal trays rattling. An avalanche cannon.
Pipes vibrating against their brackets.
Mara drives the power saw into the welded hinge.
Walt watches the corridor.
Nothing comes.
That may be worse.
The first hinge drops.
Noah watches the audio levels.
NOAH
It knows this sound now.
MARA
Then don’t give it the same pattern
twice.
Noah changes tracks. Random bursts now. Three seconds.
Silence. Seven seconds. Different speaker.
The saw bites through the second hinge.
Walt and Devon shoulder the bulkhead.
It GROANS open.
WALT
Move.
They drag Theo through.
Behind them, somewhere in Orpheus --
NOAH'S VOICE (O.S.)
Mom.
Mara stops.
Noah is standing beside her.
He grabs her arm.
NOAH
It heard that already.
Mara looks into the dark.
Then shuts the bulkhead.
Genres:
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Scene
21 -
The Long Way Up
INT. SUMMIT DRIFT - NIGHT
The passage climbs steeply. Old rail tracks disappear upward.
Walt shines his light over a wall map sealed under glass. A
line runs from their position to a small structure at the
surface.
OBSERVATION POST A.
Hannah traces another line.
HANNAH
This connects almost directly above
the west bore.
MARA
How far?
WALT
Vertical gain maybe eight hundred
feet.
DEVON
We can't drag him up eight hundred
feet.
THEO
Appreciate the confidence.
Mara looks back at the bent bulkhead.
MARA
We don't have a choice.
Rourke wipes blood from his mouth.
ROURKE
We do.
He points to a side branch on the map.
ROURKE (CONT’D)
That runs downhill. Back toward the
tunnel.
WALT
And dead-ends at an old
construction adit.
ROURKE
Which might be closer to rescue.
MARA
Might.
ROURKE
Your plan is climbing an abandoned
shaft in a blizzard with an injured
man while that thing follows us.
DEVON
You already made your call tonight.
Mara turns to everyone.
MARA
We go up.
INT. SUMMIT DRIFT - LATER
Breathing gets harder in the thin air. Mara slows for Noah.
NOAH
I'm fine.
MARA
Didn't ask.
NOAH
Your face did.
She hands him water. Ahead, Hannah notices scratches in the
mud. Not their tracks. She shines her light upward. The claw
marks continue toward the surface.
HANNAH
Mara.
MARA
It came this way before.
WALT
Not possible. Door behind us was
sealed.
Hannah points to a narrow fissure in the wall.
HANNAH
Not through our door.
The fissure is barely a foot wide. But the scratches fit.
Mara looks at the old map. The natural cavern system
surrounds the military tunnels like veins.
NOAH
It doesn't need our hallways.
A distant metallic POUND comes from above.
POUND.
POUND.
DEVON
That's not it.
Walt's eyes widen.
WALT
Rescue.
Genres:
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Scene
22 -
The Countdown Below
INT. EAST RESCUE COMMAND - NIGHT
A drilling crew works atop the Continental Divide in brutal
wind. A RESCUE CAPTAIN studies a locator beacon.
RESCUE CAPTAIN
Old maintenance post should be
below us. We punch through this
hatch, we may have direct tunnel
access.
A rotary cutter spins against ice-choked steel.
INT. SUMMIT DRIFT - SAME
The pounding echoes down. Relief breaks over the group.
ROURKE
They're here.
Mara looks at the fresh claw marks leading up. Her relief
dies.
MARA
No.
DEVON
What?
MARA
If they open the surface --
Noah understands first.
NOAH
It gets out.
The pounding grows louder. Mara grabs her radio.
MARA
Rescue, this is tunnel engineer
Mara Keene. Do not open the summit
access. Repeat, do not open the
access.
Static. Walt checks the old cable.
WALT
This drift isn't tied to modern
radio repeaters.
MARA
Can we reach them by hardline?
WALT
At the post. Above us.
Mara looks up the black incline.
MARA
Then we beat them there.
INT. SUMMIT DRIFT - NIGHT
They move faster now. The pounding above becomes a clock.
Theo's sled catches on old rail hardware. He cries out.
HANNAH
He's losing too much blood.
Mara sees the climb ahead.
MARA
We need to lighten the sled.
They dump nonessential gear. Rourke quietly pockets a flare
gun and two road flares. Noah notices.
INT. LOWER SUMMIT DRIFT - NIGHT
The group stops at a rusted emergency locker. Mara hands out
old Army blankets beneath modern shells.
The cold is sharper here. They climb toward the weather.
Noah notices Rourke staring at a crooked photograph: young
soldiers outside the Orpheus entrance in 1944. The same ridge
now crossed by I-70.
ROURKE
My grandfather worked the tunnel in
the seventies. Said there were
places nobody was supposed to
drill.
HANNAH
You never mentioned that.
ROURKE
It was a drunk Thanksgiving story.
MARA
Until you found the memo.
ROURKE
Yeah.
MARA
And buried it.
Mara checks Noah’s glove seal.
ROURKE
My daughter stopped calling me.
(beat)
Twenty-one. Boulder.
MARA
Lucas --
ROURKE
Last thing she said was, “You don’t
listen until it costs you
something.”
That gets Mara’s attention.
ROURKE (CONT’D)
I told her she was being dramatic.
He looks around at the sealed mountain.
ROURKE (CONT’D)
Turns out she had a point.
(beat)
Starting to see the pattern.
Genres:
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Scene
23 -
The Trestle
INT. NATURAL CAVERN - NIGHT
The man-made drift opens unexpectedly into a large natural
chamber. Black stone. Icicles.
A narrow ledge above a fissure dropping beyond flashlight
range. The old rails cross on a timber trestle. Walt tests
it.
WALT
One at a time.
Devon takes Theo's front handles. Hannah takes rear. They
begin across.
NISHA'S VOICE (O.S.)
Theo.
Theo freezes.
NISHA'S VOICE (O.S.) (CONT’D)
Hold still. I'm coming down.
THEO
She never said that.
From below:
NISHA'S VOICE (O.S.)
Theo. I'm coming down.
NOAH
It put it together.
Something moves beneath the trestle.
Mara looks down.
The creature isn't climbing the rock face.
It's moving under the bridge.
Body flattened against the timber, paws hooked around the
beams, long tail hanging into the abyss. Like a mountain lion
stalking upside down.
It stops directly beneath Theo. Its head rotates toward his
breathing.
Then it SPRINGS upward.
MARA
Move!
The creature launches upward. The trestle shakes.
Devon fires down. Hannah pulls Theo. A timber snaps. Rourke
bolts past Noah, breaking the one-at-a-time order.
The trestle tilts. Walt falls to one knee. Mara catches him.
The creature's hand hooks over the edge beside Theo. Theo
looks at it. Then at the others struggling to drag him. He
makes a decision.
THEO
Hey.
(beat)
Tell Nisha she still owes me a
better bandage.
Before anyone can stop him, Theo unclips the sled straps. He
kicks free.
MARA
Theo!
He and the creature fall together into the fissure. His
scream descends into black.
Then the creature answers in his voice from below:
THEO'S VOICE (O.S.)
Better bandage.
Nobody moves.
Something swings beneath the broken trestle.
Theo's red key lanyard, snagged on a splintered bolt.
Noah reaches down. Mara almost stops him. Doesn't.
Noah pulls it free. The brass key is still warm. He closes
his fist around it. Nobody says anything. Then --
MARA
We move.
INT. UPPER DRIFT - NIGHT
The survivors move in stunned silence.
Hannah wipes tears from her face. Rourke pushes ahead.
Mara grabs his jacket and spins him around.
MARA
You ran across Noah.
ROURKE
I know.
MARA
You almost knocked him off that
bridge.
ROURKE
I said I know.
MARA
Then look at him.
Rourke does.
ROURKE
I panicked.
MARA
That’s getting expensive.
Rourke pulls out the flare gun. Hands it to her. Then one
road flare.
MARA (CONT’D)
There were two.
His hand stays inside his coat.
ROURKE
There still are.
MARA
Give it to me.
ROURKE
No.
MARA
You kept yourself an exit.
ROURKE
I kept myself an option.
MARA
That’s what you called the memo.
ROURKE
If that thing gets between me and
you, I’m not dying because you want
consensus.
MARA
You already showed us that.
A beat. Rourke looks at Noah.
ROURKE
Kid --
NOAH
Don’t.
Rourke nods.
ROURKE
Fair enough.
He turns and keeps walking.
Genres:
Ratings
Scene
24 -
Thin Air
INT. WESTBOUND BORE - SAME
People sit on pavement beside their vehicles. Jackets off
despite the cold. Faces flushed.
Nisha checks the portable CO monitor. The number climbs.
A CHILD wheezes against his mother's shoulder.
Nisha kneels.
NISHA
Slow breath. In through your nose.
She checks his inhaler.
Nearly empty.
Behind her --
An SUV ENGINE turns over.
Nisha spins.
NISHA (CONT’D)
Shut that off!
A MAN behind the wheel cracks his window.
MAN
My kids are freezing.
NISHA
And you're filling the tunnel with
exhaust.
MAN
It's twenty degrees in here.
NISHA
Turn it off.
He hesitates.
Nisha marches to the hood and SLAMS her palm against it.
NISHA (CONT’D)
Now.
He kills the engine.
The tunnel fans overhead begin to WIND DOWN.
Everyone hears it.
A long mechanical whine.
Then silence.
The CO meter climbs another point.
Theo's absence is suddenly obvious.
One of the stranded drivers looks toward the service
corridor.
DRIVER
Where's the trucker?
Nisha doesn't answer.
The child looks up.
CHILD
Are we running out of air?
His mother shoots Nisha a desperate look.
Nisha crouches in front of him.
NISHA
No.
(beat)
We're waiting for somebody to turn
the fans back on.
The kid accepts that. His mother doesn't.
Nisha stands.
Looks toward the dark service door.
Under her breath --
NISHA (CONT’D)
Come on, Walt.
The emergency lights DIM.
The CO monitor BEEPS again.
Genres:
Ratings
Scene
25 -
The Dead Lift
INT. UPPER DRIFT - NIGHT
The pounding above is louder now. Closer.
Everyone looks up.
WALT
They’re almost through.
Mara looks toward the climb ahead.
MARA
Then move.
INT. SUMMIT ACCESS SHAFT - NIGHT
They reach a vertical steel ladder disappearing upward. A
placard: OBSERVATION POST - 612 FEET.
Devon looks six hundred feet up. Then down.
DEVON
Somehow this is worse.
ROURKE
You have got to be kidding me.
Walt looks at a mechanical winch.
WALT
There's a lift cage.
He throws a switch.
WALT (CONT’D)
No power.
Mara looks at the emergency generator cabinet.
MARA
Can you get it online?
WALT
Maybe. The generator is ancient but
tied to a modern retrofit line.
Walt opens the panel.
WALT (CONT’D)
Give me ten minutes.
A distant scrape from below. Devon checks his magazine.
DEVON
You got five.
INT. SUMMIT ACCESS SHAFT BASE - LATER
The group waits beneath six hundred feet of black shaft.
Noah sits beside Mara. Nobody speaks above a whisper now.
He types on his phone and shows her:
DON’T SAY NAMES.
Mara types back:
I KNOW.
Noah adds:
IT ALREADY KNOWS OURS.
Mara looks at him.
NOAH
You can say mine.
MARA
What?
NOAH
It’s heard it enough.
A beat.
MARA
I’m sorry.
NOAH
I know.
MARA
I haven’t been --
NOAH
Mom.
She stops.
NOAH (CONT’D)
I know.
Across the room, Rourke watches them.
Walt throws the generator switch. The motor COUGHS.
The lift cage shudders.
WALT
Ha.
Then --
BLACK.
The generator dies. Nobody moves.
Far below them:
A SCRAPE. Metal on stone.
Then a voice rises through the shaft. Not one voice. Several
stitched together.
CREATURE (O.S.)
Mara...
Everyone freezes.
CREATURE (O.S.) (CONT’D)
...open...
A beat.
CREATURE (O.S.) (CONT’D)
...the door.
Noah looks into the darkness below.
NOAH
It’s stitching.
HANNAH
Words it heard before.
NOAH
Patterns that got reactions.
INT. OPERATIONS CENTER - SAME
Monitors die one by one. Only battery emergency lights
remain.
INT. WESTBOUND BORE - SAME
Darkness blankets the trapped vehicles. Phone flashlights
blink on like stars. People start to panic.
NISHA
Everybody stay where you are! No
engines!
A car engine turns over anyway.
DEVON'S VOICE (PA) -- recorded earlier, now somehow bleeding
from a battery speaker --
DEVON'S VOICE
Stay in your cars.
Nisha looks up. The sound comes from the service corridor.
Not the speaker.
The creature is near.
INT. SUMMIT ACCESS SHAFT BASE - NIGHT
Walt shoulders his pack.
WALT
Emergency bus relay is back at Vent
Chamber Two. I can reset it
manually.
MARA
That's half a mile back.
WALT
And one hundred people die in the
dark if I don't.
MARA
We all go.
WALT
Then nobody gets topside before
rescue opens that hatch.
Mara knows he's right.
WALT (CONT’D)
I know the service spine better
than anybody breathing.
MARA
You don't have to do this alone.
WALT
Yeah, I do. You get topside. I get
the fans.
He hands her his tunnel master key.
WALT (CONT’D)
Get you and the kid out.
MARA
Get yourself back.
WALT
I will.
He disappears down the drift.
INT. UPPER DRIFT - NIGHT
Walt moves alone.He carries a portable speaker clipped to his
pack. At an intersection -- he hears his late wife's voice.
MARGARET'S VOICE (O.S.)
Walter.
Pain moves through him.
MARGARET'S VOICE (O.S.) (CONT’D)
Come here.
Walt closes his eyes.
WALT
She called me Walt.
The darkness is silent. Walt keeps moving.
INT. ACCESS SHAFT - NIGHT
Mara, Noah, Devon, Hannah and Rourke crowd into the lift
cage.
Mara hits UP. Nothing.
HANNAH
Tell me this thing has a manual
override.
Mara looks up. Six hundred feet of ladder vanishes into
darkness.
MARA
Come on, Walt.
A faint CLANG echoes from somewhere below.
Everyone looks down.
Another CLANG. Closer.
Genres:
Ratings
Scene
26 -
Pension Plan
INT. VENT CHAMBER TWO - NIGHT
Black except for Walt’s headlamp.
He reaches the electrical cabinet. Tears it open.
Dead switches. Old wiring.
WALT
Of course.
He pulls on insulated gloves.
Behind him --
MARGARET'S VOICE (O.S.)
Walt.
Walt stops.
MARGARET'S VOICE (O.S.) (CONT’D)
Please.
He turns toward the dark.
WALT
Better.
Back to work.
MARGARET'S VOICE (O.S.)
I miss you.
His hands stop.
A beat.
WALT
Me too.
Something PALE crosses behind a column.
Walt SLAMS the switch.
The chamber ERUPTS. GIANT FANS roar alive. Emergency lights
snap on.
The creature SCREECHES.
WALT (CONT’D)
There she is.
He jams a steel bar through the fan control. The fans lock at
full power.
Across the chamber --
The creature crawls low between the columns.
Almost flat. Its tail flicks. Stops.
Walt’s left arm hangs useless. Blood fills one eye.
The power cabinet SHUDDERS. The switch begins creeping back
toward OFF.
Walt limps toward it.
His belt buckle --
SCRAPES concrete.
The creature freezes. Its head turns.
Walt stops breathing.
The fans thunder around them.
The creature can hear him. It just can’t tell where.
Walt slowly unclips his flashlight.
Rolls it across the floor.
CLANG.
The creature EXPLODES toward the sound.
Walt moves. He reaches the cabinet. Forces the switch back.
It slips again.
WALT (CONT’D)
Come on.
He tears off his belt. Cinches the switch in place. The fans
HOLD.
Behind him --
MARGARET'S VOICE (O.S.)
Walt.
Walt closes his eyes.
MARGARET'S VOICE (O.S.) (CONT’D)
Come home.
He looks toward the exit.
The creature stands between him and the door. Listening.
WALT
You don’t get her.
Behind the creature --
The massive fan intake.
Walt sees the airflow lever. Sees the door. He pulls the
lever.
WHOOOOOM.
The chamber becomes a wind tunnel.
Dust and loose paper rip toward the intake.
The creature claws into the concrete.
Walt steps into the open.
WALT (CONT’D)
Hey.
Its head snaps toward him.
WALT (CONT’D)
Look what the storm dragged in.
The creature CHARGES.
Walt waits. Ten yards. Five. THREE --
He dives behind a column. The crosswind catches the creature
mid-leap.
It SLAMS into the intake grate. Steel BUCKLES.
Walt runs.
Behind him --
SCREEEEEECH.
The grate starts tearing apart.
Walt reaches the fire door.
A claw catches the back of his coat.
YANKS him down.
Walt grabs the doorframe with his good hand. The coat tears.
He spills through.
SLAMS the door.
A pale hand jams into the gap. Five black claws flex inches
from his face.
Walt throws everything he has against the door.
The hand slowly retreats.
SLAM.
Walt collapses against it. Gasping.
A tiny laugh escapes him.
WALT (CONT’D)
Pension plan.
CREAK.
Walt goes still.
Behind him --
Another service door slowly opens.
Blackness.
Then five pale fingers curl around the edge.
Walt stares.
The fans keep roaring.
Genres:
Ratings
Scene
27 -
The Cable Fault
INT. ACCESS SHAFT - NIGHT
The group huddles together in the lift cage. Mara hits UP.
The cage rises.
MARA
Walt got us back online.
Below, a pale figure appears on the ladder. Climbing
impossibly fast.
NOAH
Go go go --
Rourke looks up. The top hatch is two hundred feet away. He
looks down at the creature. Then quietly removes the missing
road flare from inside his jacket.
He lights it. Red fire fills the cage.
MARA
What are you doing?
Rourke throws it down the shaft. The flare bounces off the
ladder, falling past the creature.
For a second the creature turns toward the hiss. Then
continues climbing.
The creature reaches the bottom of the cage. A hand hooks
through the grate. Hannah screams as claws grab her boot.
Mara and Devon pull her. The creature peels the sole off her
boot.
Noah spots the emergency bell. He slams it. A deafening
ELECTRIC CLANG erupts inches from the creature's head. Noah
hits it again.
CLANG. CLANG.
The creature loses its grip and falls. Its scream becomes a
dozen stolen screams layered together as it drops into
darkness. Everyone stares down.
NOAH
That one was mine.
Mara kisses his hair before she can stop herself.
INT. ACCESS SHAFT - UPPER LEVEL - NIGHT
The cage grinds upward.
A warning light flashes:
CABLE FAULT.
Then --
JOLT. The cage stops. Sixty feet below the top platform.
ROURKE
Of course.
Mara forces the door.
MARA
Ladder.
They climb out.
Below --
CLANG. Metal on metal.
Another CLANG. Closer.
The creature survived.
Genres:
Ratings
Scene
28 -
The Sound of Hunger
INT. SUMMIT OBSERVATION POST - BELOW HATCH - NIGHT
A final ladder ends beneath a steel hatch.
Above it --
SCREEEEEECH.
Rescue cutters chew through the metal.
Mara pounds the hatch.
MARA
Stop!
Nothing.
The storm swallows her voice.
Hannah grabs an old wall phone. Dead.
DEVON
There.
A rusted emergency lever beside the hatch.
Mara reads the faded stencil:
EXTERNAL WARNING.
She yanks it. The cutter stops.
Silence.
Then --
NOAH'S VOICE (O.S.)
Mom.
Everyone freezes. Noah is standing beside Mara.
NOAH
Not me.
The voice comes again from below.
NOAH'S VOICE (O.S.)
Mom, help me.
Then --
From above the hatch:
NOAH'S VOICE (O.S.) (CONT’D)
Mom.
Rourke looks up.
ROURKE
Jesus.
Mara looks at the real Noah.
MARA
Dinner.
NOAH
Burgers. Fries. No phones.
The voices stop. A beat.
Then something SLAMS the underside of the platform. The floor
jumps.
Hannah screams.
MARA
Open it.
DEVON
You sure?
Another IMPACT. A bolt shears loose.
MARA
Now.
They wrench the locking handles free.
The hatch bursts open into white.
EXT. SUMMIT OBSERVATION POST - NIGHT
The hatch bursts open into hurricane wind. Rescuers recoil as
Mara climbs out. Snow lashes sideways.
RESCUE CAPTAIN
Who's in charge down there?
MARA
I am. Get everyone away from this
structure.
RESCUE CAPTAIN
Ma'am --
MARA
Move!
Noah emerges. Then Devon, Hannah, Rourke. The captain sees
blood and terror and stops arguing.
Behind them, from inside the hatch --
WALT'S VOICE (O.S.)
Mara?
The creature is coming.
EXT. SUMMIT OBSERVATION POST - NIGHT
The Continental Divide is gone inside white. Headlamps become
floating points in blowing snow. The wind flattens voices and
steals them.
Mara shoves Noah toward a SNOWCAT idling beside the post.
MARA
Inside. Stay with the driver.
NOAH
You just said --
MARA
I know what I said. Inside.
A RESCUE TECH opens the cab. Noah climbs in but keeps the
door open. Devon helps Hannah toward another vehicle. Rourke
turns in a slow circle, stunned by open sky.
ROURKE
We're out.
Mara grabs his jacket.
MARA
Not yet.
The hatch below them SLAMS. Everyone backs away. The Rescue
Captain, CALDER REYES, 45, mountain-rescue calm, draws a
sidearm.
CALDER
What’s down there?
MARA
Something that hunts by sound.
Calder sees Devon's face and decides it’s not the moment to
demand a better answer.
CALDER
How many still inside the tunnel?
DEVON
Over a hundred.
CALDER
Our east team is cutting toward the
bore. We can get portable fans
through once they reach concrete.
MARA
Do that. Nobody opens this hatch
again.
Mara points to the snowcat.
MARA (CONT’D)
Engines up. Sirens if you've got
them. Keep noise away from the
hatch.
CALDER
You said sound attracts it.
MARA
Exactly.
EXT. SUMMIT RIDGE - NIGHT
Rescue vehicles reposition through near-zero visibility.
A snowcat moves fifty yards east and lays on its AIR HORN.
Another blasts a siren west. The sound is ripped apart by
wind.
Mara watches the hatch. It bends upward once. Hannah stands
beside her in one boot and one sock wrapped in duct tape.
The hatch EXPLODES open.
The creature hauls itself into the storm. For the first time,
they see all of it.
A nightmare built on the architecture of a mountain lion.
Twelve feet nose to tail. Massive feline hindquarters built
to spring. A long muscular tail fighting for balance in the
wind.
But the front half has gone somewhere evolution should not:
forelimbs too long, shoulders narrow enough to compress
through rock, five flexible digits ending in black hooked
claws.
Its skull carries the ghost of a cougar's face -- flattened
muzzle, swept cheekbones -- distorted around a mouth capable
of opening impossibly wide.
Along its throat, THREE translucent resonating sacs pulse
independently.
It opens its mouth. Voices leak out of different parts of its
throat at once.
Bryce. Theo. Walt. Noah.
The wind hits it.
Its ears twitch in competing directions. Its head snaps left,
right --
It takes three steps toward a rescuer. Veers wrong. For the
first time, the predator looks lost.
MARA
Don't shoot unless it charges.
CALDER
Why?
MARA
It'll follow the shot.
A younger RESCUER fires.
The creature snaps toward the muzzle flash and sound. It
crosses twenty feet in a blur. Hits the rescuer. Both
disappear into white.
Mara takes the flare gun from her pack. Fires away from the
group. The flare HISSES red across the snow.
The creature releases the rescuer and races after the sound.
MARA (CONT’D)
Move!
They drag the injured man to the snowcat.
INT. SNOWCAT - NIGHT
Noah watches through iced glass as shapes move in the storm.
The driver, LENA MORSE, 29, grips the wheel.
LENA
Your mom always do stuff like this?
NOAH
Usually with spreadsheets.
The creature lands on the side of the snowcat with the impact
of a mountain lion hitting prey. Its rear claws punch into
the metal. Its long body wraps around the cab.
The blind face presses against the glass. It hears the
engine. It claws toward the vibration.
Noah spots a maintenance headset hanging from the dashboard.
He grabs the microphone and hits the exterior PA.
NOAH (CONT’D)
Hey!
His amplified voice blasts from a roof speaker. The creature
jerks upward.
The creature climbs onto the roof. Metal dents overhead. Noah
scrolls his recorder, finds a clip of the avalanche cannon
from earlier. Plugs into the PA jack.
NOAH (CONT’D)
Let’s give it weather.
He plays it. A MASSIVE BOOM erupts from the exterior speaker.
The creature recoils, drops from the roof and disappears into
white. Lena stares at Noah.
LENA
It worked. How did you know?
NOAH
I didn’t. I guessed right.
Genres:
Ratings
Scene
29 -
Bait in the Whiteout
EXT. SUMMIT RIDGE - CONTINUOUS
Mara sees the creature fall away from the snowcat.
CALDER
We need everyone off this ridge.
MARA
Where's the safest descent?
CALDER
East service road. But avalanche
hazard is extreme. We were staged
here because the old observation
post sits on a protected shoulder.
Hannah points uphill.
HANNAH
What about the control paths?
Calder follows her gesture into white.
CALDER
North Bowl. Remote avalanche
system.
Mara looks toward the creature's last position.
MARA
Can you trigger them?
CALDER
Manual only. Half mile.
MARA
Clear the bowl.
ROURKE
You're all insane.
Rourke backs toward a second snowcat.
ROURKE (CONT’D)
We have vehicles. We drive down.
CALDER
Road's not safe.
ROURKE
It's safer than standing around
waiting to become bait.
MARA
Lucas.
ROURKE
No. I'm done listening to you.
He climbs into the snowcat. Devon moves toward him.
ROURKE (CONT’D)
Back off.
He holds the second road flare like a weapon.
DEVON
You light that in a fuel cab,
you're helping nobody.
He slams the door. The snowcat lurches away. Mara watches it
vanish down the service road.
NOAH (O.S.)
Mom!
Noah jumps from Lena's snowcat and runs to her.
MARA
I told you stay.
NOAH
Rourke took the portable radio.
Mara looks toward the vanished snowcat.
NOAH (CONT’D)
And the route map.
CALDER
That road crosses the north bowl.
Mara's face changes.
MARA
He's driving exactly where we need
the creature.
DEVON
Assuming it follows him.
A road flare ignites in the whiteout below. Red light pulses
through blowing snow.
Rourke’s snowcat HORN blares continuously. The creature
SCREECHES somewhere unseen. Mara looks at Calder.
MARA
It will.
EXT. SERVICE ROAD - NIGHT
Rourke drives blind through the whiteout.
He cracks the window. Holds the flare into the storm. Red
light washes the cab.
He looks in the mirror. Nothing.
ROURKE
Come on.
He lays on the horn. Long. Continuous.
ROURKE (CONT’D)
Come on, you bastard.
A shape cuts across the headlights.
Low. Four-legged. Long-tailed.
Rourke sees it. Keeps the horn down.
The creature turns toward him.
Rourke tightens his grip on the wheel.
ROURKE (CONT’D)
That’s it.
It charges.
The snowcat bucks as the creature lands on the roof.
Metal caves inward above him.
Rourke flinches -- but does not stop.
He floors it deeper into the storm.
ROURKE (CONT’D)
Stay with me.
Genres:
Ratings
Scene
30 -
Whiteout Trust
EXT. SUMMIT RIDGE - NIGHT
Rourke’s horn drifts across the whiteout. Far away. Then
closer.
Calder works the radio.
CALDER
All units, clear North Bowl and
Corridor Three. Move east of Marker
Seven.
Static.
RESCUE TECH (V.O.)
Copy. Clearing.
Calder points into the storm.
CALDER
Control Shack Two. Four hundred
yards.
Mara turns to Noah.
MARA
You stay with Lena.
NOAH
You need the recorder.
MARA
I need you off this ridge.
NOAH
The speakers only work if you know
what to feed them.
MARA
Give it to me.
Noah grips the recorder.
NOAH
You don’t know the files.
MARA
I’ll manage.
NOAH
That’s what you said in the tunnel.
Mara stops.
The horn sounds again through the storm. Closer.
MARA
You want me to trust you?
(beat)
Trust me right now.
Noah looks out into the white. Then hands her the recorder.
NOAH
Twenty-seven is the cannon.
Mara checks the screen.
NOAH (CONT’D)
Sixty is the tunnel horn. Cleanest
track.
MARA
Sixty.
NOAH
Skip thirty-one.
MARA
Why?
NOAH
Theo.
A distant SCREECH carries through the storm. Much closer now.
NOAH (CONT’D)
Mom --
She looks at him.
NOAH (CONT’D)
Don’t lose it.
MARA
The recorder?
NOAH
No.
A beat.
NOAH (CONT’D)
You.
Mara pulls him into a hard hug. Then lets go first.
MARA
Inside the snowcat. Lock the door.
Another horn blast.
Mara turns toward the whiteout.
Genres:
Ratings
Scene
31 -
The Last Lure
EXT. RIDGE TRAVERSE - NIGHT
Mara, Devon, Hannah and Calder move on snowshoes toward
Control Shack Two.
They are tethered by rope so no one disappears in the
whiteout. Wind hammers them. Hannah struggles with her
improvised boot.
DEVON
You okay?
HANNAH
Ask me in July.
A distant snowcat horn bleats. They keep moving. A shape
looms.
CONTROL SHACK TWO.
EXT./INT. CONTROL SHACK TWO - NIGHT
A steel hut half buried in snow. Calder digs out the door.
Inside: batteries, avalanche-control panel, weather station,
emergency speakers. He powers the local system. Green lights
blink.
CALDER
Gazex One through Six available on
manual. Seven and Eight faulted.
Mara studies the bowl map.
MARA
We need the creature below the
fracture line.
CALDER
And we need to know the bowl is
clear.
He radios.
CALDER (INTO RADIO) (CONT’D)
North teams, status.
One by one:
RESCUE TECH (V.O.)
Marker Four clear.
SKI PATROL (V.O.)
Five clear.
SECOND TECH (V.O.)
Six clear.
Static. No answer from Marker Seven.
CALDER
Seven, status.
Static. Mara hears something outside. A faint voice under
wind.
NOAH'S VOICE (O.S.)
Mom.
Devon hears it too.
NOAH'S VOICE (O.S.) (CONT’D)
Mom, help me.
The creature is near the shack. Mara plugs the recorder into
the exterior speaker system. Selects file 60.
A TUNNEL AIR HORN blasts from speakers fifty yards downhill.
The creature answers with a roar of stolen voices. Its
silhouette crosses the floodlight outside, moving toward the
speaker. Calder watches through the iced window.
The creature reaches the speaker pole and destroys it. Mara
switches to another speaker farther downhill. Plays the horn
again. Moves deeper onto the bowl.
MARA
We're walking it.
Hannah watches the acoustic panel.
HANNAH
Keep moving it downhill.
Mara selects a third. The horn sounds. The creature follows.
Calder watches the map.
CALDER
Another hundred yards.
Radio crackle.
MARKER SEVEN TECH (V.O.)
Control, Seven. We have one
injured. Can't clear. Repeat, we
cannot clear.
Calder's hand stops over the detonator.
MARA
Where are they?
CALDER
Lower edge of the bowl.
DEVON
Then no avalanche.
Outside, the creature destroys the third speaker. Now it is
below the fracture line. But rescue personnel remain below
it. Mara looks at Calder.
MARA
Can we get them sideways?
CALDER
Not fast enough.
Hannah studies the terrain map. The contour lines.
HANNAH
Wait.
She wipes condensation from the screen.
HANNAH (CONT'D) (CONT’D)
Marker Seven isn't sitting on the
slab.
CALDER
What?
HANNAH
That's exposed bedrock.
She points to a narrow rib cutting sideways through the bowl.
HANNAH (CONT’D)
The fracture will run around it.
Snow channels here and here --
Her finger traces two gullies.
HANNAH (CONT’D)
-- leaving this rib above the
runout.
DEVON
You're sure?
Hannah stares through the window at a mountain she can barely
see.
HANNAH
No.
(beat)
I'm a geologist. We say things like
ninety-seven percent and pretend it
means sure.
MARA
How do we make it ninety-eight?
Hannah points.
HANNAH
Move Seven forty yards west. Onto
the rib.
Calder grabs the radio.
CALDER
Marker Seven, move west. Forty
yards. Find exposed rock.
Hannah looks toward the whiteout.
For the first time tonight, everyone is following her map.
Mara's recorder plays from the exterior system without her
touching it.
NOAH'S VOICE (SPEAKER)
Mom.
She looks at the controls. The file is not Noah. It is live
input. A microphone outside has been activated. The creature
has found it.
NOAH'S VOICE (SPEAKER) (CONT’D)
Come outside. I need you.
Mara kills the mic. Then sees a second route on the avalanche
map.
MARA
What's this?
CALDER
Old bomb tram line. Decommissioned.
MARA
Where does it go?
CALDER
Across the upper bowl to the blast
mast.
MARA
Can a person walk it?
CALDER
In daylight maybe.
MARA
Can the creature?
Calder looks at her.
EXT. NORTH BOWL - NIGHT
Mara clips into an old steel safety cable and steps onto a
narrow maintenance catwalk above the bowl. The wind almost
takes her.
Mara carries a portable speaker tied to her pack. She plays
Noah's tunnel horn clip. Far below, the creature lifts its
head. Turns toward her.
MARA
Come on.
It begins climbing toward the catwalk. Calder remains in the
control shack watching.
CALDER (V.O.)
Mara, bowl is not clear.
MARA
I'm not asking you to fire yet.
She moves across the catwalk, speaker blaring. The creature
climbs faster.
MARA (CONT’D)
I'm moving it above them.
HANNAH (V.O.)
If it gets onto the tram line with
you --
MARA
I know.
Below, two rescue workers drag their injured partner toward a
lateral ridge. The creature reaches the catwalk. Metal shakes
under its weight. Mara looks back.
Twenty yards behind her, the creature crouches low in the
snow. Tail rigid behind it. A predator's posture Mara
recognizes despite everything wrong with the body.
It prepares to pounce. Wind confuses it, but the speaker
gives it a beacon. Mara stops playback.
The creature freezes. The world becomes wind. It turns its
head left. Right. Mara moves silently. Then the safety cable
CLINKS against a post. The creature snaps toward her.
Genres:
Ratings
Scene
32 -
The Bait and the Avalanche
EXT. SNOWCAT STAGING AREA - SAME
Noah watches the ridge through binoculars, seeing almost
nothing. Lena works the radio.
LENA
Control Shack, Staging. We lost
visual.
Noah spots the remote exterior speaker control in the
snowcat. He looks at the map taped to the dash. Speaker nodes
around the ridge. He plugs his phone into the system.
LENA (CONT’D)
What are you doing?
NOAH
Following instructions.
He finds an old voice memo.
Mara, weeks earlier, arguing with him while driving:
MARA (RECORDING)
Noah, over here. Now.
Noah selects a speaker far across the bowl. MARA'S VOICE
booms into the storm.
MARA'S VOICE (SPEAKER)
Noah, over here. Now.
EXT. NORTH BOWL - NIGHT
Rourke’s snowcat tears through the whiteout.
The creature lands on the rear deck.
Rourke fires the last road flare through the shattered rear
window.
RED FIRE punches into its chest.
The creature drops away.
Rourke looks ahead.
A junction marker flashes past:
SERVICE ROAD
NORTH BOWL
The road falls away to safety.
The bowl turns back toward the creature.
MARA (V.O.)
Lucas, get off the bowl.
He looks in the mirror. The creature is already coming.
ROURKE
Where do you need it?
MARA (V.O.)
Lucas--
ROURKE
Where?
A beat.
MARA (V.O.)
Center bowl. Below Marker Seven.
Rourke turns the wheel. Hard. The snowcat fishtails back
toward the mountain.
He lays on the horn. Long. Continuous.
The creature changes direction. Comes after him.
EXT. CATWALK - SAME
Mara watches the snowcat cut across the bowl.
CALDER (V.O.)
He’s inside the release zone.
MARA
Lucas, get out of there.
EXT. NORTH BOWL - CONTINUOUS
The creature closes. Fast.
Rourke keeps the horn down.
ROURKE
Come on.
The creature LEAPS onto the snowcat.
The roof caves inward.
Rourke fights the wheel as claws punch through above his
head.
Ahead --
A black fracture races across the snow.
The cornice gives.
The snowcat rolls.
Rourke is thrown into the white.
Silence.
He tries to rise. Can’t.
Through the storm --
The creature approaches.
Rourke raises the radio.
ROURKE (CONT’D)
Mara.
MARA (V.O.)
I’m here.
Rourke watches the pale shape coming.
ROURKE
Her name’s Claire.
Mara closes her eyes.
ROURKE (CONT’D)
Tell her I listened.
The creature takes him into the white.
His radio goes dead.
CALDER (V.O.)
Mara. We have the shot.
Mara stares into the storm.
MARA
Take it.
BOOM.
The mountain breaks.
EXT. NORTH BOWL - CONTINUOUS
A wall of snow tears loose above them.
The creature bursts from the white --
Running uphill. Straight toward Mara.
MARA
Oh, shit.
She runs along the catwalk.
Behind her, the avalanche gains.
So does the creature.
CALDER (V.O.)
Blast mast! South ladder!
Mara reaches the end of the catwalk.
Nothing beyond but air.
A narrow ladder drops to a rock rib below.
The creature hits the catwalk behind her.
Metal SHUDDERS.
Mara clips her tether.
The creature crouches. Wind screaming around its blind head.
It can’t place her.
Mara doesn’t breathe.
Her radio CRACKLES.
NOAH (V.O.)
Mom?
The creature snaps toward the sound.
MARA
Noah, stop transmitting --
It LUNGES.
Mara jumps.
Claws rip through her pack as she swings across the gap.
Her recorder tears free --
Hits the platform.
PLAYBACK starts.
NOAH (RECORDING)
Wind’s clipping the mic.
The creature whips toward it.
NOAH (RECORDING) (CONT’D)
It’s supposed to sound like
weather.
The avalanche HITS.
Everything disappears in white.
Genres:
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Scene
33 -
Echoes in the Snow
EXT. ROCK RIB - MOMENTS LATER
Mara hangs from the ladder.
Snow thunders beneath her.
Then --
Stillness. Only wind.
Her shoulder bleeds. Her radio is gone.
Mara starts down.
Behind her:
MARA’S VOICE (O.S.)
I’m here.
She stops.
A pale hand punches through the avalanche debris. Then the
skull. The creature claws itself free.
Broken. One forelimb bent wrong. Tail dragging. Still alive.
CREATURE
I’m here.
Mara draws an ice axe.
The creature listens. Its blind head twitches violently in
the wind.
Mara steps sideways.
CRUNCH.
The creature turns toward her boot. She freezes.
A radio lies half-buried beside it.
NOAH (V.O.)
Mom? Answer me.
The creature looks down. Slowly picks up the radio.
In Mara’s voice --
CREATURE
Noah.
Genres:
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Scene
34 -
The Voice on the Wind
INT. SNOWCAT - SAME
Noah bolts upright.
CREATURE (V.O.)
Noah.
MARA'S VOICE (V.O.)
Come outside.
Noah reaches for the door.
MARA'S VOICE (V.O.)
Noah. I need you.
His hand stops. Noah listens.
LENA
What?
NOAH
That's not her.
LENA
How do you know?
Noah almost smiles despite himself.
NOAH
My mom doesn't ask me to come
toward the dangerous thing.
The radio crackles.
MARA'S VOICE (V.O.)
Noah. Come outside.
NOAH
She tells me what to do.
He looks at the locked door.
NOAH (CONT’D)
Stay in the truck. Lock the door.
Don't improvise.
He switches channels.
NOAH (INTO RADIO) (CONT’D)
Calder. It has my mom's radio.
(beat)
And she's alive.
EXT. ROCK RIB - NIGHT
The creature drops the radio.
Turns toward Mara.
CREATURE
Mara.
Not a copy anymore.
A patchwork of stolen voices.
Mara grips the axe.
The creature starts toward her.
Mara backs onto --
BLAST MAST THREE.
A steel platform clinging to the ridge.
She sees:
A WARNING HORN.
HIGH-PRESSURE LINES.
Beyond them --
A loaded cornice hanging over darkness.
The creature climbs onto the platform.
Mara reaches for the horn lever.
BLAAAAAAAT.
The creature convulses. Falls to one knee.
Mara hits it again.
BLAAAAAAAT.
It SCREAMS in a dozen human voices.
Then looks directly toward the horn. Learning.
The creature charges.
She swings the axe.
The pick buries in its damaged shoulder.
Black blood.
The creature slams her into the railing.
The axe falls away.
Its jaws open over her face--
Rows of hooked teeth.
Mara jams her forearm beneath its throat.
The creature pushes closer.
Her hand finds the horn lever.
BLAAAAAAAT.
The creature recoils.
Its rear paws land on the cornice.
CRACK.
Mara sees it.
A fracture running beneath the snow.
The creature hears her move. Turns.
Mara looks at the high-pressure hose. Then the cornice.
She rips the hose loose.
Compressed air SCREAMS across the platform.
The creature snaps toward it.
Mara throws the hose onto the cornice.
It whips across the snow like something alive.
The creature follows.
One step. Two. The crack widens.
Then the creature stops. Turns back toward Mara.
The creature crouches. Ready to spring.
Mara looks at the horn. Then at the mountain beneath them.
MARA
Hear this.
She SLAMS the horn lever.
BLAAAAAAAAAT.
The creature launches.
The cornice fractures beneath it.
The whole edge of the mountain drops away.
Creature. Snow. Steel. Gone.
Mara dives for the railing as the collapse tears past.
She catches it with one hand. Hangs over darkness.
The roar fades. Only wind remains.
INT. SNOWCAT - SAME
Noah stares at the radio. Nothing.
NOAH
Mom?
Static.
NOAH (CONT’D)
Mom.
Lena watches him.
He reaches for the door.
Stops himself. Remembers. Trusts her.
EXT. BLAST MAST THREE - NIGHT
Mara drags herself onto the platform. Bloodied. Spent. Alive.
A radio transmission crackles from the mast speaker.
NOAH (V.O.)
Mom, if you can hear me... don’t
answer.
Mara almost laughs.
NOAH (V.O.)
Just stay where you are.
Mara collapses against the railing.
MARA
Good kid.
EXT. BLAST MAST THREE - LATER
Headlamps emerge through the storm.
Devon reaches Mara first.
DEVON
There you are.
Mara opens her eyes.
MARA
Noah.
DEVON
Exactly where you left him.
A weak smile.
Genres:
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Scene
35 -
First Light at the Divide
EXT. SUMMIT STAGING AREA - PRE-DAWN
The storm is finally breaking.
Noah sees Mara arriving on a rescue sled.
He runs to her.
Mara barely gets upright before he crashes into her.
She winces. Holds him tighter anyway.
NOAH
You said trust you.
MARA
I know.
NOAH
Terrible advice.
MARA
Probably.
He holds on.
NOAH
Don’t do that again.
MARA
Deal.
Noah pulls back.
NOAH
You’re lying.
MARA
A little.
He laughs. Then cries.
Mara holds him as dawn begins to reach the Divide.
Genres:
Ratings
Scene
36 -
To Infrastructure
EXT. EAST PORTAL - DAWN
Rescue crews have carved a narrow corridor through avalanche
debris. Portable fans roar into the bore. People emerge
wrapped in blankets. Nisha leads the first walking group.
EXT. EAST PORTAL STAGING - MORNING
Mara sits on the bumper of an ambulance while a PARAMEDIC
tapes her ribs. Noah sits beside her under the same blanket.
Mara’s phone rings in her pocket.
She looks at the screen:
TUNNEL INCIDENT COMMAND.
Mara silences it.
EXT. CONTINENTAL DIVIDE - MORNING
Sunlight breaks through storm clouds over the avalanche-
scarred ridge. The north bowl is torn open.
Rescue helicopters begin to move now that weather allows.
Tiny against the Rockies.
A search team crosses the debris field.
INT. DINER - MORNING
Warm light. Coffee. Exhausted travelers. Highway closures
roll across a television with the sound off.
Mara and Noah sit in a booth. Two enormous burgers between
them.
Mara’s phone BUZZES beside her. She looks at it. Turns it
off.
Mara reaches into her coat. Walt's tunnel master key. She
sets it beside the dead phone.
Noah sees it.
Neither of them says anything.
Then he raises his burger.
NOAH
To infrastructure.
Mara raises hers.
MARA
To infrastructure that stays where
we put it.
NOAH
That’s asking a lot.
MARA
I’m lowering my standards.
They tap burgers. Noah takes a bite.
NOAH
So this counts as dinner?
MARA
Absolutely.
NOAH
It’s morning.
MARA
After tonight? It counts.
That gets a smile.
Outside the window, morning sun breaks across the snow-
covered Continental Divide.
Noah looks toward it.
NOAH
You ever think it’s weird? Driving
into a mountain?
Mara chuckles.
MARA
Every day.
Noah smiles. Mara takes a bite.
FADE OUT.
THE END