red zone doctrine
pairing: bucky barnes x reader | 8k | jurassic park au
warnings: red zone horror, dinosaur attacks, blood/injury, death, weapon violence, panic, unethical experimentation, military-funded projects
summary: the park’s biggest nightmares live behind doors the guests will never see. when the red zone breaches, you and bucky barnes—internal security, lethal and unshakeable—fight your way out with a small group of survivors and the truth snapping at your heels.
author's note: chat, i was shaking in my boots writing this! i would rather die than be put in this situation; HOWEVER, if i had a broody, no nonsense bucky with my i think i could manage?!? pls don't sue me if you get nightmares from this🫣🦖🦕
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The tourist side of the island smells like sunscreen and money.
The air is salt-bright and warm, thick with the perfume of hibiscus hedges planted to look accidental. The visitor center runs on curated awe—polished concrete floors, gift shop plushies, the looping video that promises you “a once-in-a-lifetime experience” in seven languages. The dinosaurs here are safe enough to put on a brochure.
Even when something goes wrong, it’s the kind of wrong you can spin.
A goat goes missing and the kids squeal like it’s a show. A fence flickers and the tour guide cracks a joke about “ancient predators and modern technology.” A staff member breaks their wrist on a service ladder and you patch them up in the clinic while they tell you, laughing too loudly, that they’re fine, totally fine, couldn’t happen on a better island.
You nod. You smile. You keep your voice soothing.
Because the other side of the island doesn’t smell like money.
It smells like bleach and electricity. Like wet concrete. Like the metallic bite of blood that never fully leaves your hands no matter how much you scrub.
The other side of the island doesn’t get brochures.
It gets classification stamps.
You’re not supposed to call it the other side. You’re not supposed to say the words classified wing out loud. Officially, it’s a “restricted research corridor,” a cluster of facilities “supporting veterinary excellence and specimen health.”
Unofficially, it’s the Red Zone.
And you are the medic stationed there.
Not because you’re naïve enough to think you can save the island, but because you’ve always been foolish enough to think you can save people.
Your badge doesn’t have your name on it. It has a number. Your access key doesn’t open the visitor center. It opens doors that don’t exist on any map.
Doors like the one in front of you now: matte black, no window, a single camera lens sunk into the wall like an unblinking eye.
The lock gives a quiet click when you press your thumb to it. The door swings inward with a hydraulic hush.
Inside, the corridor lights are too bright. White, clinical. Designed to make everything visible, even the things you’d rather not see.
You push your cart forward—trauma kit, suture pack, field dressings, IV fluids, portable defib—because you’ve learned the Red Zone doesn’t wait for you to be ready. The air is colder here, regulated. The hum of generators is a constant under everything, like the island’s heartbeat, steady and oblivious.
At the end of the hall stands Bucky Barnes.
He doesn’t lean. He doesn’t slouch. He doesn’t waste energy pretending to be casual.
He’s in black tactical gear that makes him look like a shadow that learned how to hold a gun. No park logo, no cheerful patch. His hair is pulled back, just long enough to brush his collar. The security badge on his vest has been stripped down to a bar code. Even his presence feels classified.
He watches you approach like he’s tracking the threat level of the air around you.
The first time you met him, you’d thought, stupidly, Oh. That’s what a weapon looks like when you let it walk around as a man.
The second time, you’d realized the worse truth:
He’s not pretending to be anything.
“Morning,” you say, because you refuse to let the island turn you into a whisper.
His eyes flick to your hands. To your cart. To the stethoscope looped at your neck. Then back to your face.
“Doc,” he answers, voice like gravel pressed into velvet. It’s not a nickname, not really. It’s a role. A classification.
Bucky is the head of internal security for this section, but “security” on the Red Zone side is a polite word. You know what he actually is. You’ve seen the way other staff go quiet when he walks past. You’ve heard the clipped radio codes. You’ve watched him escort men in military fatigues through doors you’re not allowed to look at.
There are rumors. There are always rumors. Some say he’s former special forces. Some say he’s the reason this wing hasn’t collapsed under its own sins. Some say he was sent here because he knows how to keep mouths shut.
The only rumor you trust is the one you can feel when he looks at you:
He’s been ordered to keep you quiet too.
“Any injuries overnight?” you ask, because you’ll keep doing your job even if it kills you.
“None you need to know about,” he says automatically.
You give him a look.
His jaw flexes, like he’s swallowing down an answer that tastes wrong. “One tech got clawed. Superficial. Bandaged it. Told him to come see you.”
“You bandaged it.”
“I know where to put gauze.”
“That’s not the same as knowing what infection looks like.” You move past him, cart wheels clicking softly. “Where is he?”
“In quarantine bay three.”
“Of course he is.”
Bucky falls into step beside you, silent as a threat. You can feel the weight of him, the constant readiness. It does something to your nerves, makes your skin too aware of itself. He’s always like this here—tight, contained, lethal.
On the tourist side, security wears khaki and smiles. Here, security wears darkness and doesn’t.
You glance up at him. “Did you sleep?”
His eyes don’t leave the corridor ahead. “Sleep’s a luxury.”
“You’re going to get someone killed if you run yourself into the ground.”
His mouth twitches, not quite a smile. “This place already got people killed.”
He isn’t wrong.
You pass a frosted glass window that looks into a lab. Inside, scientists in white coats move around a table with the reverence of priests. On a screen behind them is a rotating model of a creature’s skull. It’s wrong in a way you can’t articulate—too many ridges, too many teeth, eye sockets angled predatory and too forward.
You don’t stop walking.
The Red Zone teaches you to keep moving.
At quarantine bay three, the air smells like antiseptic and fear. The tech sits on a cot with his shirt torn at the shoulder, a bandage wrapped tight around his upper arm. His face is pale.
When he sees you, relief loosens his shoulders. When he sees Bucky behind you, it tightens again.
“Let me see,” you say gently.
He holds his arm out with a tremor. You peel back the bandage carefully. Three parallel gashes run along his bicep, shallow but angry. The skin around them is red.
“Did you clean this?” you ask.
“Yeah,” he says too fast. “Barnes—he—he poured something on it.”
“Alcohol,” Bucky says flatly.
You look up. “The drinking kind or the sterilizing kind?”
Bucky’s gaze meets yours. Something unreadable flickers there. “Sterilizing.”
You hum, not convinced. You start flushing the wounds properly. “What happened?”
The tech swallows. “We were moving the specimen to containment—project—” His eyes dart to Bucky.
“Don’t,” Bucky says, low.
The tech clamps his mouth shut.
You pause, saline dripping from your gloved fingers. “Bucky.”
He doesn’t flinch at his name, but something in him goes still, like a blade held in place.
“It’s okay,” you say quietly. “If it’s a biohazard risk, I need to know.”
His stare is hard. “You don’t.”
You hold his gaze anyway. “You can’t order bacteria not to spread.”
For a long moment, the only sound is the hum of the vents.
Then Bucky exhales through his nose, sharp. “Talons.”
“That narrows it down to half the nightmares in this place.”
“Not the park ones.”
You don’t let your face change. “I figured.”
You finish cleaning, apply antibiotic ointment, dress the wounds properly. “You’re on prophylactic antibiotics,” you tell the tech. “And you’re off shift. No exceptions.”
He nods so hard it’s almost desperate.
When you step back, Bucky’s hand clamps on the tech’s uninjured shoulder with a finality. “You heard her.”
The tech scrambles up like he’s been granted a pardon. He practically runs out.
As soon as he’s gone, you turn on Bucky. “You can’t keep doing this.”
“Doing what.”
“Keeping everyone in the dark,” you say. “They’re terrified. They’re hurt. They deserve to know what they’re dealing with.”
Bucky’s expression doesn’t soften. “They deserve to live.”
“That’s not the same thing.”
“It is here.”
You step closer without meaning to. The air between you feels… charged. Like standing too close to a fence that could spark.
“I know you think you’re protecting us,” you say, keeping your voice low. “But you’re also protecting them. Whoever funded this. Whoever signed off on it. Whoever decided ‘failed genetic projects’ were a reasonable expense.”
His eyes sharpen. “Watch it.”
You lift your chin. “Or what?”
The question hangs there for a beat too llong.
Bucky’s gaze drags down your face, slow, assessing. You know he’s cataloguing the vulnerability: you’re in scrubs, you don’t have a weapon, your job is literally to bleed for other people. You can’t win a fight with him.
And yet, you’re the one who makes him pause.
His voice drops. “Or you become a problem.”
You should be scared of that.
Instead, something tight in your chest pulls into a dangerous kind of curiosity. “Am I a problem?”
The corner of his mouth twitches again, a shadow of something human. “You ask too many questions.”
“Someone has to.”
He looks at you for a long moment. The fluorescent light catches in his eyes, makes them look cold. But you’ve seen him in the infirmary at two in the morning, when he brought in a guard with a shattered knee and waited outside the door like a penitent. You’ve watched him hand you a protein bar when you forgot to eat. You’ve heard him murmur “thank you” so quietly you almost thought you imagined it.
You know he’s not just a weapon.
You also know he could choose to be.
The alarms start as a low pulse.
At first, you think it’s one of the routine drills. The Red Zone runs drills like religion. Everything here is contingency. Everything here is if.
But then the lights flicker once—just a stutter—and the hum of the generators dips like the island’s heart skipped.
Bucky’s head snaps up, attention cutting toward the ceiling speakers.
The pulse becomes a wail.
A voice crackles through the intercom, strained, too fast. “Containment breach—repeat, containment breach—Red Zone perimeter compromised—”
The next words come out garbled, swallowed by static and the sudden rise of screaming voices in the corridor.
You freeze for half a second, the way your body tries to decide whether this is real.
Bucky doesn’t.
He moves like the alarm is a starter pistol. His hand yanks a radio from his vest. “Barnes, report.”
The reply is chaos. “—fence down—project Cerberus out—God, it’s in—”
A wet crunch. A scream cut off.
Static.
Your mouth goes dry.
Bucky’s eyes flick to you, sharp. “Get your bag.”
“I have—”
“Not that.” He grabs your cart and shoves it toward the wall hard enough the wheels squeal. “Field kit. Now.”
You don’t argue. You’ve learned Bucky’s commands are born from a math you don’t have time to do.
You snatch your go-bag from the hook, fingers shaking only once you’ve got it slung over your shoulder. “What is Cerberus?”
Bucky’s jaw tightens. “Not a dinosaur.”
“That’s not an answer.”
“It’s worse,” he says, and there’s something ugly in his voice, something like disgust.
The lights flicker again. This time, they don’t come back at full strength. The corridor dims into a strobing, sickly half-light.
Somewhere down the hall, metal shrieks. A door slams open.
Footsteps pound closer—running, frantic, too many.
A scientist bursts around the corner, lab coat torn, face smeared with blood that isn’t all his. He sees Bucky and you and lunges like he’s drowning.
“They’re out,” he gasps. “The prototypes—they—”
Behind him, something moves.
It’s fast—too fast for something that size. A shadow under the flashing emergency lights, a blur of muscle and slick skin. It hits the scientist from behind with a force that folds him like paper.
His scream doesn’t finish.
You stumble back, hand flying to your mouth.
Bucky is already in motion. He pulls you behind him with one brutal tug, his body a shield. His other hand brings his rifle up—where it came from, you don’t know, it’s like it just exists when he needs it.
The creature lifts its head.
For a second, the strobing light catches it fully.
It looks like something a child would draw if you asked them to make a dinosaur scarier.
Long, raptor-like, but the proportions are wrong—forelimbs too thick, joints angled in ways that suggest something else was stitched into the DNA. Its skin is dark and wet-looking, almost amphibious, with patches of scale that glitter oily. Its jaw splits wider than it should, rows of teeth layered like needles. And its eyes—
Its eyes catch the light and reflect back, pale and wrong, like a cat’s.
It turns its head slightly, tasting the air.
Then its gaze locks on you.
Your blood goes ice.
Bucky’s finger tightens on the trigger.
The rifle cracks—three sharp shots that echo down the hall. The creature jerks as rounds hit its shoulder, its flank, its neck.
It doesn’t go down.
It shrieks—a sound that isn’t just animal, that vibrates with something engineered and furious—and launches.
Bucky shoves you hard to the side.
The creature slams into him instead, claws scraping armor, teeth snapping inches from his face. He braces, boots skidding on the slick floor, and then he does something you’ve never seen a park guard do in your life.
He uses his body like a weapon.
He pivots, using the creature’s momentum, and drives it into the wall. Metal buckles. The creature thrashes, tail whipping, knocking a wall-mounted monitor loose. Sparks rain.
Bucky grunts, muscles corded, and jams the barrel of his rifle under the creature’s jaw. He fires point blank.
Blood sprays—hot and dark. The creature convulses.
Still, it tries to bite.
Bucky doesn’t hesitate. He drops the rifle, grabs a combat knife, and drives it up, under the jawline, into the soft tissue where bone meets nerve.
The creature shudders once, twice.
Then goes limp.
Silence crashes in after the struggle, broken only by the alarm’s relentless wail and the crackle of sparking wires.
You stand frozen, chest heaving.
Bucky wipes his blade on the creature’s hide like it disgusts him. He snatches his rifle back up and turns to you.
“Move,” he orders.
Your legs don’t cooperate immediately. Your brain is still stuck on the image of teeth. On the scientist’s scream cutting off. On the way that thing looked at you like you were prey.
Bucky’s hand clamps around your wrist—firm, not gentle, but grounding—and drags you forward.
“Bucky,” you manage, voice thin. “What the hell was that?”
He doesn’t slow. “A failure.”
“That doesn’t—”
He hauls you around a corner just as something slams into the wall behind you. The impact shudders through the floor.
Bucky shoves you into a recessed doorway. He leans out, rifle ready, scanning.
The corridor is chaos now—people screaming, running, some bleeding, some clutching radios that only spit static. A security guard stumbles past with a torn thigh, leaving a smear of blood.
You surge forward instinctively. “Hey—”
Bucky catches your shoulder, stops you. “You can’t help if you’re dead.”
“I’m a medic.”
“And I’m telling you he’s not leaving this corridor alive if you step out.” His voice is low, savage with certainty. “Stay.”
Something about the way he says it makes your skin prickle. Not just fear—something else. Something darkly magnetic.
Because he isn’t bluffing.
Bucky moves out into the hall like he owns it. Like chaos is just another environment he knows how to breathe in.
You hate that a part of you watches him and thinks, God.
He grabs the bleeding guard by the vest, drags him into the doorway with you. “Doc.”
You drop to your knees automatically. The guard’s thigh is shredded, muscle exposed. Bite marks. Not clean. Ragged.
You pull your kit open with shaking hands. “Tourniquet,” you snap.
Bucky’s hands are already there, pulling a strap from his gear. He cinches it high and tight with brutal efficiency.
The guard whimpers.
“Hold still,” Bucky says, not unkind, just absolute.
You pack the wound, press gauze hard until the bleeding slows. Your hands are slick with blood. Your heart is pounding so hard you can feel it in your throat.
“What bit you?” you ask the guard.
He sobs, eyes wide. “It—it was—like a raptor but—wrong.”
You glance up at Bucky.
His eyes are fixed down the corridor. “Told you.”
A new voice crackles over a radio nearby, clearer this time, panicked. “Barnes! We’ve got survivors at the substation—four, maybe five—can’t reach the helipad, perimeter fence is down—”
Bucky snatches his own radio. “Where’s the breach?”
“Red Zone enclosure six—then it spread—power grid’s unstable—God, Barnes, it’s a bloodbath—”
Bucky’s jaw clenches. “How many out?”
A pause. A swallow you can hear through the speaker. “We—don’t know.”
Bucky’s eyes flick to you. “We’re going.”
Your stomach drops. “We?”
He doesn’t even blink. “You’re the only medic on this side.”
“There are others—”
“Not anymore,” he says, and the flatness of it is worse than if he’d screamed.
You swallow hard, forcing your hands to keep working. The guard grips your wrist weakly, desperate.
“I need to get him to the clinic,” you say.
Bucky looks down at the guard, then back at you. “Can he walk?”
The guard shakes his head, tears spilling.
Bucky doesn’t hesitate. He crouches, grabs the guard under the arms, and hauls him up like he weighs nothing. “Then he rides.”
He throws the guard over his shoulder. The guard cries out.
“Sorry,” Bucky says, not sounding sorry at all. Then to you: “Stay on my six. Don’t lag. Don’t run ahead. If I say down, you go down.”
Your mouth feels full of cotton. “Bucky—”
He meets your gaze, and for a heartbeat the strobing red light makes him look like something out of a nightmare too—blood spattered across his jaw, eyes hard, posture coiled.
“You wanna live,” he says quietly, “you listen to me.”
It’s not a threat.
It’s a promise.
You nod once.
Bucky moves.
You follow.
The substation is a concrete blockhouse half-swallowed by jungle, fenced off from tourists by signage that says AUTHORIZED PERSONNEL ONLY in cheerful font, like that’s enough to keep curiosity away.
Today, the signs are pointless. The fence is bent. The gate hangs open.
Inside, the air smells like ozone and wet earth. The generator hum has a jagged edge to it, like it’s struggling. Somewhere deeper in the jungle, something roars—low, huge, too close.
Bucky dumps the injured guard onto a bench inside the substation and barks at a tech with a bleeding forehead, “Watch him.”
The tech nods frantically.
In the corner, four people huddle together: two scientists, a young intern with mascara streaked down her cheeks, and a security runner with his arm in a makeshift sling.
They look at Bucky like he’s either salvation or doom.
Then they see you.
Hope flares, fragile.
“Thank God,” one of the scientists whispers. “We thought—”
Bucky cuts him off. “We’re leaving.”
“Leaving where?” the intern chokes out. “The helipad’s—”
“Compromised,” Bucky says. “We go through service tunnel nine. It connects to the old water treatment route. That gets us to the east ridge. Extraction will meet there.”
The security runner’s face goes gray. “Tunnel nine goes through—”
Bucky’s eyes flash. “Yeah.”
The runner swallows. “The… other enclosures.”
The scientists exchange looks, terror sharpening. “We can’t go through the Red Zone,” one says. “That’s—those are—”
“Classified,” Bucky finishes for him, voice cold. “You should’ve thought about that before you took the funding.”
The scientist flinches like he’s been slapped.
You look between them, mind racing. “Bucky, tunnel nine—if it goes through the Red Zone—”
“It’s the only route not flooded with tourists and not on fire,” he says. “We take it or we die here.”
A distant crash shudders through the jungle—trees snapping. The sound is so big your bones vibrate with it.
The intern whimpers.
Bucky shoulders his rifle. “Move.”
No one argues after that.
You tighten your grip on your go-bag strap as you step out into the open.
The jungle is different when you’re not behind glass.
On the tourist tours, the forest is a backdrop. Controlled. Curated. But out here, it’s a wall of green that breathes. Humidity clings to your skin instantly. Bugs whine in your ears. The ground is slick mud and rotting leaves, eager to swallow your boots.
Bucky moves ahead, silent, scanning. His posture is predatory—head tilted slightly like he’s listening to frequencies you can’t hear. Every few steps, he lifts his hand to signal stop, go, crouch, like he’s choreographing survival.
You keep the group tight behind you. You check on the runner’s sling, on the intern’s breathing, on the scientist whose hands won’t stop shaking.
You tell yourself you can do this.
You tell yourself you’re trained.
Then you see the first body.
A guard lies half in the mud, throat torn out. His radio crackles weakly beside him, soaked. His eyes are open, staring at nothing.
The intern gasps, hand over her mouth.
One of the scientists makes a strangled sound.
You swallow bile.
Bucky doesn’t even slow. He steps over the body like he’s stepping over a log.
You want to hate him for that.
Instead, you understand.
If you stop, you die.
The service tunnel entrance is a concrete mouth in a hillside, framed by overgrown vines. The keypad beside it blinks, lights stuttering.
Bucky swears under his breath and yanks a tool from his belt. He pries the panel open with practiced speed, fingers moving like he’s done this a hundred times.
“Thought you said you didn’t know where to put gauze,” you mutter, trying to keep your voice from shaking.
His mouth twitches faintly. “I didn’t say I was just security.”
The keypad sparks once, then goes dark.
Bucky curses again, then slams his metal hand against the lock.
The metal door shudders.
Again.
The hinges groan.
With a final, brutal shove, the lock gives. The door swings inward.
The tunnel yawns dark and damp, a stale breath rolling out.
Bucky flicks on a flashlight attached to his rifle. The beam cuts through the darkness, catching on wet concrete and old signage that reads MAINTENANCE ACCESS — AUTHORIZED STAFF ONLY.
The intern whispers, “I don’t—like—”
Bucky turns his head slightly. “You wanna stay out here?”
Another roar rolls through the jungle—closer now. The sound is massive, like the island itself is angry.
The intern shakes her head violently.
“Then move,” Bucky says.
You go in.
The tunnel is colder, the air heavy with mildew. Water drips from the ceiling. Your flashlight beam trembles slightly, betraying your nerves.
Bucky takes point. You’re right behind him. The survivors trail in a line.
You walk for what feels like forever, the tunnel swallowing sound, making every footstep echo.
Then the wall signage changes.
The cheerful maintenance warnings vanish. In their place: black-and-white placards with red stamps.
RED ZONE—AUTHORIZED PERSONNEL ONLY.BIOHAZARD.PROJECT ACCESS—CLASSIFIED.
Your skin prickles.
One of the scientists whispers, “This is—this is wrong.”
“You think?” you whisper back, more bitter than you mean to.
Bucky slows at a junction. Two paths: one marked WATER TREATMENT, the other marked simply RZ-9.
He pauses, listening.
In the silence, you hear it: a faint clicking sound, rapid, almost insect-like.
Bucky’s hand lifts—stop.
Everyone freezes.
The clicking grows louder.
Then, from somewhere in the darkness ahead, something scuttles across the tunnel ceiling.
Your flashlight catches a glimpse—pale flesh, too many limbs, a tail like a whip.
The intern makes a tiny, terrified noise.
The clicking stops.
A breath.
Then a sound like claws scraping concrete.
Bucky’s rifle swings up. “Down,” he snaps.
You drop instinctively. The others scramble.
Something drops from the ceiling.
It lands with a wet slap and a hiss.
Your light catches it fully and your brain stutters.
It’s small—dog-sized—but it’s wrong in a way that makes your stomach lurch. It has the sleek body of a raptor, but its limbs are longer, almost spider-like, jointed in too many places. Its head is narrow, eyes huge and glossy, mouth packed with needle teeth.
And on its back—your light glints off something metallic.
Harness.
Armor plating.
The scientist beside you whispers, horrified, “They put… gear on them.”
The creature’s head snaps toward the sound.
Bucky fires.
The shot booms in the tunnel, deafening. The creature jerks, but the armor plate deflects enough that it doesn’t drop. It shrieks and launches—
Not at Bucky.
At you.
Your breath stops.
Bucky moves faster than thought. He slams into it mid-leap, driving it into the wall. The creature thrashes, claws scrabbling, teeth snapping.
Bucky grabs its neck with his metal hand and twists.
You hear bone crack.
The creature goes limp.
Bucky throws it to the floor like trash.
The survivors stare, stunned.
You stare too, pulse pounding, because for a split second that thing was going to tear you open and Bucky didn’t even hesitate.
He didn’t even think.
He just… saved you.
You push up onto your knees, breathing hard. “Thank you.”
Bucky doesn’t look at you. “Keep moving.”
But his shoulder brushes yours as he steps past, just barely, and the contact feels like a promise you’re not ready to name.
Tunnel nine spits you out into a corridor that doesn’t belong to the park.
The walls are reinforced steel, stained with old scratches. The lighting is dim, red emergency strips that make everything look like it’s bleeding.
There are doors on either side, heavy, numbered with stenciled codes: RZ-6, RZ-7, RZ-8.
A smell hangs in the air—chemical, sour, like something rotting under bleach.
The intern starts crying silently.
You want to comfort her, but you don’t have time.
Bucky stops at a viewing window set into one of the doors. The glass is thick, layered, scratched from the inside.
He angles his flashlight through it.
You shouldn’t look.
You do anyway.
Inside, the enclosure is huge, lit dimly by UV lamps. The ground is torn up. Blood smears the concrete.
And in the corner, curled like a nightmare trying to make itself small, is something that looks like a raptor… until it lifts its head.
Its mouth opens.
Rows of teeth—too many—unfurl like a flower of knives.
A second set of jaws slides forward from inside the first.
The intern chokes on a sob.
The scientist whispers, “That’s—impossible.”
Bucky’s voice is a quiet blade. “It’s funded.”
You step back from the window, heart pounding. “Bucky… what are these.”
He doesn’t answer right away. His gaze stays on the enclosure, as if he’s watching for movement. “Military wanted assets,” he says finally. “Park wanted profit. Scientists wanted to play God.”
“And you?” you ask, too sharply. “What do you want?”
His eyes flick to you. In the red light, they look almost black.
“I want to keep people alive,” he says. “Even when they don’t deserve it.”
Something about that lands heavy in your chest.
You’re about to speak when a sound echoes down the corridor.
A deep, dragging thud.
Slow. Heavy.
Like something big moving with purpose.
Bucky’s body goes rigid. He lifts his hand—stop.
The survivors freeze behind you, trembling.
The thud grows louder.
Then you hear it: a wet, rasping breath, like something breathing through fluid.
Bucky’s flashlight beam steadies on the corridor ahead.
At the far end, where the hall widens into a junction, something steps into view.
At first, your brain tries to categorize it. T. rex. Big. Bipedal. Head heavy.
Then it tilts its skull and you see the details that don’t belong.
Its skin isn’t scaled like the park rex. It’s textured, almost armored, with patches of bony plating that catch the red light. Its forelimbs are longer than they should be, ending in claws that look built for gripping, not just tearing. Along its spine, ridges rise like blades.
And its eyes—
They aren’t animal.
They’re too aware.
It lowers its head, nostrils flaring.
Smelling.
Finding.
The security runner whispers, “Oh my God.”
The creature’s head snaps toward the sound.
It roars.
The sound slams into you like a physical force. The corridor vibrates. Dust sifts from the ceiling. The intern screams.
Bucky’s voice cuts through. “RUN.”
You run.
The corridor becomes a tunnel of panic, red light strobes, footsteps pounding. Your lungs burn instantly. The survivors stumble, sobbing, clinging to each other.
Behind you, the thuds accelerate.
Fast.
Too fast for something that big.
Bucky moves beside you, herding, shoving a scientist forward when he trips, grabbing the intern by the collar to keep her from falling.
“Left!” he barks at a junction.
You veer left without thinking, into a narrower hallway.
A door ahead reads RZ-9 — EMERGENCY EXIT.
Bucky slams his shoulder into it.
Locked.
He curses, then drives his metal hand into the control panel.
Sparks explode. The lock clicks.
He yanks the door open.
“IN!” he shouts.
You shove the survivors through into a stairwell. Concrete steps spiral down. The air is colder here, damp.
Bucky is last in. He slams the door shut, throws a heavy bar across it.
Then the impact hits.
The entire door buckles inward as the creature slams into it from the other side. The metal groans. The bar shudders.
The survivors scream.
Bucky braces his shoulder against the door, muscles straining.
“Down,” he snarls at you. “Get them down!”
You don’t argue. You herd the survivors down the stairs, heart hammering, hands gripping the rail slick with condensation.
Above, the door shrieks under assault.
Bucky’s boots thunder on the steps as he follows, still calm in a way that feels impossible.
“How long will that hold?” you gasp.
He doesn’t look back. “Not long.”
“Then what—”
He stops mid-stairwell, grabs a red metal box on the wall, rips it open.
Inside: emergency explosives.
Your blood turns to ice. “Bucky—”
“Keep moving,” he snaps.
He plants charges with swift efficiency, like this is familiar. Like he’s done this in places that weren’t supposed to exist on maps either.
The door above bends inward again with a horrific scream of metal.
Bucky slams the box shut, grabs your wrist, hauls you down the last stretch of stairs.
At the bottom, the stairwell opens into a service corridor that smells like old water and rust. Pipes run along the ceiling. A sign points toward WATER TREATMENT ROUTE.
You sprint.
Behind you, Bucky’s voice is sharp. “Go!”
Then he shoves you forward, turns, and runs back up a few steps.
You spin, panic slicing through you. “BUCKY!”
He doesn’t look at you. He just lifts a hand—move.
The door above finally gives with a scream. The creature’s roar floods the stairwell.
Bucky hits the trigger.
The explosion is deafening, a concussive blast that punches air into your lungs. The stairwell shakes violently. Dust and debris rain down.
The roar cuts off abruptly, smothered.
For a heartbeat, there’s silence.
Then Bucky comes flying down the stairs, coughing, soot streaking his face, eyes wild.
He grabs your arm and runs, dragging you with him.
You don’t realize you’re crying until your vision blurs.
The water treatment route is a labyrinth of pipes, open channels, and concrete walkways slick with algae. The sound of rushing water echoes off the walls, constant, masking smaller noises.
It should feel safer.
It doesn’t.
Because safety on this island is an illusion.
You push the survivors onto a catwalk, forcing them to keep moving. The intern is sobbing openly now, breaths hiccupping. One scientist has gone eerily quiet, eyes glassy.
The security runner staggers, pale.
You stop long enough to check him. His sling is soaked through.
“Let me see,” you say.
He flinches. “We can’t stop.”
“If you bleed out, you slow us down more.” You don’t soften the truth. The Red Zone doesn’t reward tenderness. “Sit.”
He sits, trembling. You unwrap the makeshift sling. The wound underneath is ugly—deep gouges, muscle torn.
Bucky crouches beside you, rifle still up, scanning the shadows.
“You have anything for pain?” the runner whispers.
You nod, digging in your kit. “This will sting.”
You clean the wound quickly, inject local anesthetic as best you can. Your hands are steady because you’ve trained them to be. Your heart is still racing, but your fingers don’t betray you.
Bucky watches you work, head tilted slightly. “You’re shaking,” he says softly.
You blink. “No, I’m not.”
He reaches out with his flesh hand—careful, controlled—and cups your elbow. His thumb presses lightly against your skin.
You realize then that the shaking isn’t in your hands.
It’s in your arm.
It’s in your body, adrenaline finally crashing into your muscles.
You swallow hard. “I’m fine.”
His eyes meet yours. The red emergency light from the corridor above is gone now, replaced by the dim industrial glow of the treatment plant. In this light, his face looks… human. Tired. Smeared with soot and blood.
“I’ve seen ‘fine,’” he murmurs. “This ain’t it.”
The intimacy of it—his touch, his attention—hits you like a shock. Your throat tightens.
You want to say something sharp to cover the softness. You want to say something stupid like don’t. Like you don’t get to look at me like that after what I just saw you do.
Instead, you whisper, “You’re hurt.”
His jaw flexes. “Doesn’t matter.”
“You told me I can’t help if I’m dead,” you say, voice trembling with something that isn’t just fear. “Same goes for you.”
For a moment, he looks like he might argue.
Then he glances down at his own arm.
There’s blood soaking through his sleeve.
Your stomach drops. “Bucky.”
“It’s not mine,” he says automatically.
You stare.
He sighs, exasperated, and peels back the sleeve.
A deep gash runs along his forearm—fresh, angry, bleeding slowly. You don’t know when it happened. You don’t know how you didn’t see it.
Because you were watching him like he was invincible.
You swallow hard and reach for gauze. “Sit.”
He hesitates.
You lift your eyes to him, steady. “That’s an order, Barnes.”
Something flickers in his expression—amusement, maybe, or respect.
He sits.
You clean the gash, your fingers gentle despite everything. The skin around it is warm. Real. You patch him with practiced care, wrap the bandage tight.
Bucky watches your hands the entire time, like he’s memorizing the way you touch him when you’re not afraid.
When you finish, you glance up—and realize how close his face is.
Close enough that you can see the faint line of scars near his jaw. Close enough that you can feel his breath.
Your pulse kicks.
His gaze drops to your mouth for half a second.
Something hot and dangerous curls in your belly—an awful thought, born in terror and adrenaline:
I should be scared of you too.
You should be.
Because you just watched him kill like it was breathing.
And yet… he’s letting you bandage him like you’re something precious.
You pull back sharply, clearing your throat. “We need to move.”
His eyes hold yours for a beat longer. Then he nods once, as if locking something away. “Yeah.”
You stand, turn to the survivors. “We’re going to the east ridge. Stay close. Don’t wander. If you hear anything, you don’t scream—you get down and you cover your head. Understood?”
They nod, terrified.
Bucky rises behind you like a shadow.
You move.
The east ridge is where the island drops away into cliffs, jagged rock cutting into violent sea. The wind is sharp up here, smelling of salt and storm. Gray clouds churn overhead, heavy with rain.
You emerge from the service access into open air and for a second your lungs feel like they might actually work again.
Then you see the state of the ridge.
The fence line is shredded. Metal posts bent like straw. A security jeep lies overturned, its windshield spiderwebbed with cracks.
Bodies.
Not many, but enough.
The intern sobs again, collapsing to her knees.
You swallow hard, forcing yourself to keep moving. You scan the ridge for the extraction point—an open pad marked with faded paint, a place where helicopters can land.
It’s empty.
Your heart drops.
Bucky raises his radio. “East ridge. We’re here.”
Static answers.
He tries again. “Extraction, respond.”
Nothing.
The wind howls.
The survivors look at him like he’s about to tell them they’re doomed.
Bucky’s jaw tightens. He lowers the radio slowly, eyes scanning the horizon.
Rain begins to fall, cold drops that slick your hair to your forehead.
You step closer. “Bucky—”
He turns to you, and something in his face is hard and grim and angry—not at you, but at the island, at the people who built this, at the fact that the math of survival is never fair.
“They’re not coming,” the scientist whispers, voice broken.
Bucky’s eyes narrow. “Not yet.”
A sound cuts through the wind.
Not a roar this time.
A clicking.
Rapid. Coordinated.
Your stomach twists.
Bucky’s head tilts slightly. He listens.
Then he swears, low. “Get down.”
You don’t hesitate. You shove the survivors behind the overturned jeep, dropping with them. Mud soaks your knees.
Bucky moves away from cover, stepping into the open like he’s offering himself up.
“Bucky!” you hiss, horrified.
He doesn’t look back. His rifle lifts, steady, aimed toward the treeline.
The clicking grows louder.
Then shapes move in the brush.
Not one.
Several.
You see them in flashes through rain and branches—sleek bodies, too-long limbs, reflective eyes. Smaller than the Cerberus thing, faster, coordinated.
Pack.
The intern makes a small, terrified sound.
One of the creatures snaps its head toward it.
Bucky fires.
A creature drops, twitching. Another darts forward, too fast. Bucky pivots, firing again, rounds cracking through the air.
The pack fans out, circling.
They’re smart.
Your breath comes in sharp gasps. Your hands dig into mud, useless, because you don’t have a gun. You have gauze and saline and stubbornness.
Bucky keeps firing, moving, never letting them flank him fully. His body is fluid, lethal. He looks like violence given purpose.
One creature lunges at his left.
He swings the rifle, strikes it mid-air. The stock cracks against its skull. It yelps and scrambles back.
Another lunges at his right, jaws snapping—
Bucky’s metal hand shoots out, catches it by the throat mid-leap.
He slams it into the ground hard enough mud splatters.
It thrashes, claws scraping his armor. He holds it down like it’s nothing, then drives his knife into its skull.
The pack hesitates.
In that hesitation, you see it: the way they look at him.
Not fear.
Recognition.
Like they know what he is.
Like he’s something engineered too.
A chill crawls up your spine.
The pack shifts again, clicking, searching for weakness.
One breaks from the group and darts toward the jeep—toward you.
Your body moves before your brain does. You snatch a metal tool from the mud near the jeep—some broken piece of fence—and swing as the creature lunges.
The metal bar connects with its snout. The impact jars your arms to the bone.
The creature shrieks, snapping at you again.
You stumble back, heart in your throat.
It lunges—
And Bucky is there.
He moves like a bullet, slamming into it, knocking it away from you. His hand grabs your collar, yanks you behind him, shielding you again.
His voice is a snarl. “I said down.”
“I was down,” you choke, shaking. “It came at us.”
His eyes flick over you quickly, assessing injuries. Rain streaks down his face. His gaze is fierce, almost furious, but not at you.
At the idea of you being hurt.
“Stay behind me,” he says, voice lower now, deadly calm.
You nod, breath hitching.
Bucky turns back to the pack.
“Come on,” he mutters, like he’s talking to monsters the way someone might talk to a storm. “Let’s do this.”
He advances.
The pack retreats a step, then surges together, a coordinated rush.
Bucky fires until the magazine clicks empty.
Then he throws the rifle aside and draws a second weapon—a pistol you didn’t see, because of course he has one. He fires again, precise.
Creatures drop, twitching.
But there are still too many.
One lunges. Bucky ducks. Another snaps at his shoulder; it catches fabric, tears. He grunts, twists, drives his elbow into its jaw.
The third lunges low—
You see it a heartbeat before it happens.
You shout, “Bucky!”
He pivots too late. The creature’s claws rake across his side, tearing.
Blood blooms dark against black gear.
Your stomach drops.
Bucky’s face doesn’t change. He grabs the creature with his metal hand and rips it away from him like tearing weeds. He throws it into the cliffside rocks. It hits with a sick crunch.
The pack falters again, clicking frantic now, uncertain.
Then a new sound cuts through everything.
Rotor blades.
A helicopter crests the ridge, lights cutting through rain.
Relief hits so hard your knees go weak.
The pack hears it too. They scatter into the trees, vanishing like nightmares fleeing dawn.
The helicopter lowers, wind whipping rain and mud.
A voice blasts through a loudspeaker. “MOVE TO EXTRACTION!”
You grab the intern, hauling her up. You pull the scientists to their feet, shove them toward the landing zone.
Bucky staggers slightly.
You see it and your chest tightens. “Bucky!”
He tries to wave you off. “Go.”
“No,” you snap, grabbing his arm. “You’re bleeding.”
His jaw clenches. “I can walk.”
“Then walk with me.”
For a second, his gaze locks on yours, intense enough to feel like a touch.
Then he nods once.
You half-drag him toward the helicopter, the wind roaring, rain stinging your face. The survivors scramble aboard.
A soldier reaches for you. “Move, now!”
You push Bucky forward. He climbs in, grimacing.
You start to climb after him—
Then something moves at the edge of the treeline.
A shape, bigger than the pack.
Watching.
Waiting.
Your blood turns cold again.
Bucky’s head snaps up, following your gaze.
For a heartbeat, you see something in his eyes—recognition, dread.
“Cerberus,” he breathes.
The creature doesn’t charge.
It just stands there, half-hidden by rain and leaves, eyes reflecting pale.
Like it’s memorizing you.
Bucky’s hand clamps around your wrist, yanking you into the helicopter. “Now.”
You stumble inside. The soldier slams the door.
The helicopter lifts, rising fast, wind screaming.
Through the window, you see the Red Zone recede—the shredded fence, the bent metal, the jungle swallowing secrets whole.
And you see Cerberus still watching, unmoving, as if it knows the island will never really let you leave.
Inside the helicopter, everything is loud and shaking and wet.
The survivors huddle together, sobbing, staring at their hands like they can’t believe they’re still attached. The intern keeps whispering “oh my God” like a prayer.
You drop to your knees beside Bucky.
He’s slumped against the wall, one hand braced on the floor, the other pressed to his side. Blood seeps between his fingers.
“Let me see,” you say, voice trembling.
“It’s fine,” he grits out.
“You don’t get to say that.” You pry his hand away gently.
The gash on his side is deep—claw marks, torn skin. Not fatal, but bad.
You grab gauze, press hard.
Bucky hisses, body tightening.
“Sorry,” you whisper automatically.
His eyes flick to you—sharp, then softer. “Don’t apologize for doing your job.”
“You’re bleeding because you did yours,” you shoot back, and your throat tightens unexpectedly. “Because you—because you keep—”
Because you keep putting yourself between me and teeth.
You swallow it down, focus on the wound.
You clean it as best you can in a shaking helicopter, stitch when you can, bandage tight.
Bucky watches you the entire time.
Not like before, in the corridor—cold, assessing.
Now, his gaze is something else.
Something heavy.
When you finish, you sit back on your heels, hands trembling. Blood streaks your gloves. Your stomach churns with delayed horror.
Bucky’s hand reaches out—slow, deliberate.
He touches your wrist, thumb brushing the pulse there like he’s checking that you’re real.
“You’re hurt?” he asks, voice low.
You blink, surprised. “No.”
His eyes narrow, like he doesn’t believe you. His gaze drags over you—your face, your arms, your knees, cataloguing. “You sure.”
“Yes,” you breathe.
His hand stays on your wrist anyway, warm and steady.
You look at him, really look, and the adrenaline crash makes your emotions feel sharp-edged and raw.
“You’re terrifying,” you whisper before you can stop yourself.
Bucky’s brow furrows slightly. “Yeah?”
You swallow. “The way you—out there—how you moved—how you—” Your voice breaks, not from fear, but from something too big to fit in your chest. “I watched you kill like it was nothing.”
His gaze doesn’t flinch. “It wasn’t nothing.”
“It looked like nothing.”
His jaw tightens. He looks past you, toward the helicopter door, toward the island fading behind storm clouds. “I was trained to make it look like nothing.”
A beat.
Then he looks back at you.
And in his eyes is the thing that undoes you—not violence, not coldness, but a kind of brutal honesty.
“I am scary,” he says quietly. “You should be careful around me.”
Your breath catches.
Because he’s giving you an out.
Because he’s warning you.
Because he’s letting you decide.
And all you can think is:
I should be scared of you too.
But you aren’t.
Not in the way you should be.
You shake your head slowly, rainwater dripping from your lashes. “You weren’t scary when you—” You swallow. “When you checked me. When you… looked at me like I mattered.”
Bucky’s hand tightens on your wrist, just slightly.
“You matter,” he says, like it’s a fact. Like it’s been a fact this whole time.
Your chest aches. “Why.”
His eyes flicker—something like pain, something like longing.
“Because you’re the only one in that place who still acts like people are people,” he says, voice rough. “Not assets. Not projects. Not… collateral.”
The helicopter shakes with turbulence. The intern sobs again. The world is loud.
But here, in this pocket of space, it’s just you and him and the steady press of his thumb against your pulse.
You whisper, “What happens now?”
His gaze holds yours. “Now we tell the truth.”
You almost laugh—soft, broken. “They’ll bury it.”
“Then we dig,” he says, and there’s something fierce and certain in him that isn’t just soldier. It’s survivor. It’s rebellion.
You stare at him, rain and blood and adrenaline mixing into something dizzying.
“Bucky,” you whisper, barely a sound.
His eyes drop to your mouth again. Slower this time. Not like a man scanning for threats.
Like a man who wants something and doesn’t know if he’s allowed.
He leans a fraction closer.
Not enough to kiss you.
Enough to make you feel the heat of him, the gravity.
“I’m not gentle,” he murmurs. “Not really.”
You swallow, heartbeat loud in your ears. “You were with me.”
His breath shudders out, almost a laugh, almost a curse. “Yeah,” he says quietly. “With you, I can be.”
The helicopter climbs into cloud cover, the island vanishing completely behind gray.
You don’t kiss him—not with survivors sobbing beside you, not with blood on your gloves, not with the taste of fear still sharp on your tongue.
But you let his hand stay on your wrist.
You let the promise sit there between you, unspoken and electric.
Because you can feel it, sure as the beat under his thumb:
Whatever was unleashed on that island didn’t just break containment.
It broke the world you thought you lived in.
And Bucky Barnes—terrifying, lethal, impossible—just chose you as the one thing he refuses to let it take.
Outside, thunder rolls.
Inside, his thumb keeps counting your pulse like it’s the only truth left.
And for the first time since the alarms started, you believe you might actually survive what comes next.
Not because the island let you go.
But because he did.
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