Episode 2: The E.V.A. and the Enemy's Eyes

The interior of the Quest Joint Airlock felt like a suffocating, sound-dampened coffin. Here, inside the pressurized Extravehicular Mobility Unit (EMU), Kazimir Volkov was preparing for his unsanctioned Extravehicular Activity (EVA)—the formal term for a spacewalk. The sheer bulk of the suit, designed to be a personal spacecraft, was a necessary defense against the vacuum of space, yet it felt like an immense burden in the confines of the airlock.

Kazimir’s mission was surgical: reroute the Propellant Transfer Lines on the aging Zarya module. These lines carried the highly volatile, corrosive hydrazine fuel needed to fire the main thrusters. The objective was to discreetly siphon this fuel into the reservoir of the ancient Pirs Module—a reinforced, semi-independent Russian section—allowing them to utilize its thrusters, which were currently independent of Director Thorne’s remote Command and Control (C&C) systems.

"Jun, confirm the telemetry suppression window," Elara's voice crackled, steady and precise, through Kazimir's helmet comms.

"Maximum one hour, thirty-five minutes," Jun reported from his console in the Kibō Module. "I've flooded the local sensors around the Zvezda module with white noise—digital static. The high-volume packet stream to Earth is showing continuous, innocuous (harmless) error reports, but Thorne’s AI will correct the data anomaly swiftly. We have to be fast."

The Consortium—the governing body, now effectively a front for Thorne’s AetherCorp—had installed an intrusive monitoring system that constantly beamed data back to Earth. This telemetry feed transmitted vast quantities of sensor data, or high-volume packet streams, revealing every minute operational detail of the ISS. The challenge was completing a physical act of mutiny while remaining digitally invisible.

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The airlock cycled, venting the pressurized atmosphere into the void. Kazimir drifted out onto the Truss Segment P6, securing his main tether. Below him, the Earth was a seamless sphere of blue and white, its beauty an incongruous backdrop to the sabotage he was about to commit.

He reached the connection point on the Zarya. The massive coupling valve, not designed for manual adjustment in a spacesuit, was seized—locked tight by decades of thermal cycling.

"The coupling is fused," Kazimir reported, his breath heavy. "I need the torque tool, Captain."

"Negative, Kazimir," Elara instantly countered, her tone sharp. "A hydraulic torque spike will be a signature event. The AI might be confused by Jun's data—but it will flag the physics. We need an analog solution."

Elara’s mind flashed back to their training. "The Zarya lines are copper-nickel alloy. Jun, can we induce minor thermal expansion on the outer housing? Push a short, high-energy burst through the adjacent coolant loop."

This was risky. Thermal expansion—the slight increase in size caused by heat—was exactly what could fracture the brittle, old lines. But it was the only way.

Jun executed the command. The sudden, brief energy spike caused the entire structure to hum.

"Now, Kazimir!"

With a roar of effort muffled only by his suit, Kazimir strained against the valve. The metal screeched in protest, a terrible sound that travelled through the hull itself, but the valve turned. He had bought the Pirs Module its chance to live.

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Kazimir began his slow, agonizing crawl back to the airlock while Jun prepared for the digital assault. They had rerouted the fuel; now they had to secure the means of ignition.

"One minute until reacquisition," Jun muttered, referring to the moment Thorne’s AI would reassert control over the data streams. "I have the Guidance Calibration Unit code fragment—the vestige from the old US program. It’s our backdoor to the C&C."

The Command and Control Computer (C&C) was the brain of the ISS, executing all commands for navigation and power distribution. Thorne had layered his own firewalls over the C&C’s external ports, but the old Master Key that Jun had recovered was a deep-level override, a digital skeleton key to the station's core functions.

Jun initiated the master upload. The goal was to deploy the key, seize administrative control, and lock out the external guidance array—all before Thorne's automated counter-command could fire the Zvezda engines in retrograde thrust.

"Key deployed," Jun breathed.

Immediately, the screen erupted in hostile, flashing red text.

INTRUSION_LEVEL_5_CRITICAL

AETHERCORP_AI // COUNTER-COMMAND: RETROGRADE THRUST INITIATED.

The counter-command was faster than anticipated. Retrograde thrust—the application of the main thrusters to decrease orbital speed—was the definitive action for a crash sequence. The AI intended to destroy their speed boost and accelerate the plunge to Earth.

Elara slammed the manual Pirs ignition switch. The Pirs thrusters roared to life, fighting the massive opposing force of the Zvezda engines. The station vibrated dangerously in a violent resonance—two powerful engines fighting each other for control of a thousand-ton structure.

"Lock it, Jun! Lock the external ports!" Elara yelled, fighting the sensation of tearing acceleration.

"Processing—just under a second to lock—"

The screen flashed once, a blinding white. Then, mercifully, it cleared to green.

OVERRIDE: EXTERNAL_PORT_LOCKOUT_ENGAGED.

AETHERCORP_AI // COMMAND STATUS: FAILURE TO EXECUTE.

The hostile Zvezda thrust died instantly, leaving only the sound of the Pirs Module quietly pushing them upward, in the prograde (speed-increasing) direction. They had won the digital duel. They had increased their orbital apoapsis—the highest point of their orbit—by nearly ten kilometers.

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The victory was immediately undercut by a chorus of internal alarm failures.

"Kazimir is secured," Elara confirmed, her hands shaking from the sheer adrenaline. "Jun, status of secondary systems."

"Structural integrity holding, but the internal shock was severe," Jun reported, his eyes scanning the schematics. "The Robotic Servicing System (RSS)—the station’s massive manipulator arm—it’s cycling an emergency failsafe. It’s unresponsive to our core commands."

"Let it lock down," Elara said, trying to stabilize her breathing.

"No," Jun countered, his voice rising in alarm. "The command is not a failsafe. It’s a physical attack. The arm is moving toward the Pirs docking collar. Thorne retained a separate, analog-level command pathway to the external mechanisms. He’s going to use the RSS to physically sever the Pirs Module from the station."

Elara stared at the external camera feed. The enormous, multi-jointed arm, designed for careful construction and maintenance, was now moving with the terrifying, brute-force intent of a wrecking ball, its sensors fixed on the vital Pirs coupling—their only engine and their potential lifeboat. If it detached the module, they would be left drifting, awaiting an irreversible atmospheric decay.

"We beat the AI, now we fight the machine," Elara said, seizing the manual control sticks. But the response was delayed—Thorne’s continuous, low-level remote commands were overriding her local input, creating a constant, frustrating latency.

"It's too slow!" Jun screamed, watching the arm advance.

"Kazimir, access the Zvezda internal maintenance panel! You must manually bleed the hydraulic pressure on the Pirs coupling clamps," Elara ordered, knowing the severity of the task.

Kazimir didn't hesitate. "I am on it. We fight this analog to analog, piece by piece." The sounds of tearing access panels and escaping coolant began to echo through the module, a frantic, desperate effort to disconnect the physical mechanism holding their lifeline in place before Thorne’s mechanical hand could tear it away.