Chapter Text
The bunker had been sealed long enough that the desert had started pretending it wasn’t there.
Wind skimmed over cracked earth. Sand filled the seams of the blast doors. If not for the faint electromagnetic signature Bruce picked up from orbit, it would have stayed buried another fifty years.
“Tell me again why this place still has power,” Sam asked as they descended the concrete ramp.
“Because evil is environmentally conscious now,” Tony replied. “Solar panels on the roof. Very sustainable fascism.”
Captain America moved ahead of them, shield strapped across his back. The air inside the bunker was stale, dry enough to scrape at his throat. His boots echoed in a way he didn’t like.
Too many corridors like this in his life.
Too many symbols painted on walls by men who thought they were building the future.
Natasha ran her fingers along a rusted control panel. “No recent traffic. Dust pattern’s undisturbed.”
“That’s comforting,” Sam said. “Love an abandoned murder labyrinth.”
Steve almost smiled. Almost.
The hallway forked. Tony sent a drone skimming left, its blue light cutting through the dark. “We’re looking at late Cold War construction. Concrete mix suggests seventies, maybe early eighties.”
“HYDRA never really had an off-season,” Natasha said.
They moved room to room. Crates marked in German. Broken centrifuges. Yellowed files that disintegrated when touched.
It was all ghosts.
Steve tried not to think about how many times he had believed they were finally finished.
Every time he smashed one head, two more had grown back.
They reached a reinforced chamber at the heart of the structure. The door had held. Whatever was inside, someone had wanted it protected.
Tony whistled softly. “Well. That’s promising in a deeply concerning way.”
Steve braced the frame while Sam wedged charges into the hinge seams. The explosion was controlled, precise. The door collapsed inward with a groan of tortured metal.
Inside, servers lined the walls like a cathedral of dead machines.
Bruce exhaled in awe. “Some of this hardware predates me.”
“That’s rude,” Tony said. “Nothing predates you.”
Bruce shot him a look and moved to the central terminal. A faint hum vibrated through the floor.
Steve stood watch while Tony jacked into the system.
There was something about rooms like this. The stillness. The waiting.
He had learned, long ago, that HYDRA never archived anything without a reason.
“Okay,” Tony murmured. “We’ve got layered encryption. Redundant partitions. Someone really didn’t want this touched.”
“Can you get in?” Sam asked.
Tony scoffed. “Please.”
Directories began populating across the screen.
WEAPONS DEVELOPMENT
SERUM ITERATIONS
ASSET DEPLOYMENT
STRATEGIC EMBED NETWORK
Natasha leaned closer. “That last one’s sleeper agents.”
Steve’s jaw tightened. Of course it was.
Then another folder flickered into view.
PRIMUS
The room shifted.
It was subtle. A tightening. A collective intake of breath.
Tony frowned. “That’s new.”
“Open it,” Steve said.
He didn’t know why his pulse had picked up.
Tony tapped the projection. The file expanded slowly, corrupted segments knitting together under reconstruction protocols.
PROJECT: PRIMUS
OBJECTIVE: Long-Term Genetic Viability Study
TEMPLATE SOURCE: ROGERS, STEVEN G.
For a moment, Steve didn’t understand what he was looking at.
Then he did.
The letters seemed too sharp. Too deliberate.
His name.
Not Captain America. Not subject designation.
Rogers, Steven G.
Sam read it aloud, quieter than usual. “Template source?”
Tony’s voice lost its edge. “Cap.”
Steve stepped closer to the hologram.
There were dates embedded in the metadata. Late eighties. Early nineties.
Long after the ice.
Long after he was supposed to be dead.
“How?” he asked.
Bruce swallowed. “SSR medical archives weren’t destroyed after the war. Some were absorbed into SHIELD. HYDRA had access.”
Steve remembered the blood draws. The endless testing. Needles and clipboards and men talking about him like he was already equipment.
He had been so proud to serve.
He hadn’t imagined his cells would outlive him in filing cabinets.
More text resolved.
METHOD: In vitro fertilization protocol
CARRIER: Embedded civilian asset
STATUS: Procedure attempted
The air felt thinner.
Sam frowned. “Attempted what?”
Bruce answered, voice careful. “They used your DNA. To try to conceive a child.”
No one moved.
Steve stared at the word attempted.
Attempted meant possibility.
Attempted meant somewhere between failure and success there was a space wide enough for a life to exist.
His mind moved without permission.
A hospital room in the early nineties. Fluorescent lights. A woman he would never know agreeing to something she might not have fully understood.
A child growing up without context.
Without choice.
He had always known HYDRA would try to weaponize his blood again. Replicate the serum. Improve it.
This was different.
This wasn’t about recreating Captain America.
This was about creating someone who never asked to carry him in their bones.
“Is there a birth record?” Natasha asked.
Tony shook his head. “File’s incomplete. No confirmation field. No termination report either. It just stops.”
Stops.
Steve felt something unfamiliar and deeply unwelcome coil in his chest.
Hope.
He didn’t know if that made him foolish.
“If someone is out there,” he said slowly, “they didn’t consent to any of this.”
Sam looked at him carefully. “You don’t know there is.”
“I know they tried.”
His thoughts flickered, unbidden.
What if it failed?
What if it didn’t?
What if there was a person in the world who had lived three decades without knowing the truth of how they began?
He thought about Brooklyn again. About wanting so badly to matter. To be strong enough. Good enough.
What would it do to someone to learn they were an experiment?
Natasha’s voice was steady. “What do you want to do?”
Steve didn’t hesitate this time.
“We find out if it worked.”
Tony nodded slowly. “Okay. Then we start broad. Birth records, genetic databases, embedded asset locations.”
Bruce added quietly, “Military registries would have mandatory DNA submissions.”
Steve absorbed that.
If HYDRA wanted longitudinal data, they would monitor whether the child gravitated toward service.
Toward combat.
His stomach tightened.
He had volunteered because he believed in protecting people.
What if someone else had done the same without ever knowing why the pull felt so strong?
He looked at the corrupted screen one last time.
Project Primus.
First.
Primary.
He had been their prototype once.
He would not let them reduce someone else to that.
“Run the search,” he said.
And for the first time since the ice, Steve Rogers was afraid of what he might find.