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Tron and Clu had fallen into yet another argument.
It was a minor friction over quarrel—or, more precisely, the misalignment between two programs’ operational goals. These arguments rarely ended. There was no winner to be extracted from them, no verdict to be reached. Neither of them could truly accuse the other of neglecting duty; both were, in their own ways, executing what they believed they were built to execute.
But today was an upgrade day—an entire new class of beings, ISOs, had begun to crowd the space programs once lived in as if it were theirs by default. Flynn had proposed a shutdown so he could swap in the newest drives on the market.
“Again, for the ISOs.” Clu let the words out like a sigh that had sharpened into condemnation. “If you ask me, Flynn forgot his promises a long time ago.”
“If that is what the User wants,” Tron said evenly. “He will bring broader roads and larger cities. Perhaps even new teams to work alongside us. It only requires minor adjustments in the real world—something only Flynn can do.”
———
The server was flashing.
In the quiet basement, there was nothing but the roar of fans: a steady, mechanical breath. The iron-gray boxes sat in the dark like the only neon source left in an unlit city.
A drop of water fell from the ceiling.
The water was from—unimportant. A small HVAC defect. A hairline crack where the concrete had never been properly waterproofed. Steam rising from Kevin Flynn’s coffee cup, gathering itself into a small drop of bead.
In any case: there is a single mineral drop detached from the ceiling and fell.
The computer case was still open, because Kevin Flynn had just finished a hardware upgrade and stepped away from the desk to answer his wife’s call. His Grid deserved the best, the newest hardware—new drives, for instance. Unfortunately, the bricklike phone in his hand was clumsy as an artifact. Perhaps twenty years later his son would get to use a slimmer device, something lighter that fit the palm without dragging the whole world down with it.
Kevin brushed back his messy fringe. The skin around his stubble itched—dry, uncared for. He went upstairs, setting the Grid aside for the moment, just to listen to his wife talk about swollen legs, the nausea that wouldn’t end, and the next prenatal appointment on the calendar.
He knew listening was necessary. And what mattered more than family—more than his one and only, irreplaceable real world?
————————————————————
And a building collapsed.
Gravity carried the drop down with a careless grace, and—its landing was perfect, as if the universe had decided to be precise for once. It slipped into the seam of exposed hardware.
The server began to smoke.
In less than half a millicycle, the system could no longer confirm the building's existence.
The fall came abruptly. But it wasn’t the first fall the programs had ever handled. As the ground began to pixelate, Tron seized Clu’s arm without hesitation. Clu—— who looked almost as though he enjoyed the role of temporary leader: his combat Grid suit now layered with a clean, heavy long-coat template with golden wires. Did he even have space left for weapons? Tron did not allow useless thoughts to consume process time.
Of course. Neither of them had brought any parachute.
“Jump—now! It’s coming down!” Tron shouted.
They stumbled, slid, and half-ran along the tilting structure as it folded into itself. It wasn’t a clean vertical drop. The building was still trying to preserve integrity—still trying, still trying—while broken floors collapsed like functions called in the wrong order, folding down segment by segment. Friction vanished beneath their feet. Gravity was reassigned mid-calculation. Direction stopped being singular.
Light began to stretch.
The straight energy lines that defined the world were dragged into arcs. It wasn’t only them that fell—reality tore into ribbons beside them and vanished as fast as it rendered. Clu’s footing disappeared.
His movement was quicker than any simulated emotion. His fingers snapped out, instinctively searching for something to grab—but every surface he reached for had already been flagged invalid. The air was like an undefined region, a zone with no guarantees. He was being delivered downward into a layer that wasn’t ready.
Tron caught him.
It was almost reflex, a motion executed before the instruction had time to fully confirm. Impact traveled up the arm; load spiked; the combat suit’s energy distribution surged to compensate. Their speed changed vector for a brief moment. Falling became rotation.
The structure broke again.
A section of wall, still mid-render, slammed toward them from the side. Tron had no time to recalculate. He turned and shoved Clu toward the more stable side. The next instant, the impact took him in the back.
It wasn’t pain in the human sense.
It was a clear, brutal error.
Data scattered along the line of his spine, like code forcibly torn apart mid-execution. Tron gave a muffled grunt, his body losing response for a fraction of a cycle.
They kept falling.
Wind formed turbulence in the hollow, carrying pixel debris that hadn’t yet been cleared. Clu managed to stabilize, grabbed Tron’s arm—and saw the damage: a fracture where energy spilled uncontrollably, shedding bright fragments like broken glass made of light.
“You shouldn’t—”
The fall cut his voice clean off.
Tron didn’t answer. His system was reprioritizing. The ground was approaching—not a solid floor, but an uninitialized lower space: too quiet, too blank, like a region waiting to be written into. It opened beneath them with the stillness of an empty file.
Before impact, Tron twisted one last time, positioning himself between Clu and that blankness.
And then the world dropped into the next layer.
————————————
Clu poured an energy vial over Tron’s wound, hoping the unresponded program would finish rebooting sooner rather than later. The Creator’s work looked mostly intact—this, Clu thought with a bitter kind of clarity, is what humans call a bolt from the blue. A saying he’d learned from Flynn.
After a long while, Tron’s eyes opened. His awareness was fogged, the system resuming processes one by one. He looked around.
The place was a wasteland of geometry.
Clu cradled Tron’s head and neck, worry made visible on his face—an emotion rendered so plainly it felt indecent.
“…Flynn?” Tron whispered.
Clu released him without hesitation. Tron’s head hit the ground again.
“Look at me and tell me who I am,” Clu said, squatting nearby, waiting for Tron to regain full processing capability.
“Clu,” Tron said slowly, the name forming as if pulled from static.
“Bingo.” Clu exhaled once, a habit inherited from Users—meaningless to a program that didn’t breathe. “How do you feel? That was a long cycle. Flynn would call it ‘a bolt from the blue,’ wouldn’t he?”
“I’m fine.” Tron tried to sit up. “I consider this a constructive experience. There have been more terrorist attacks lately—ISOs in the city, buildings destroyed. This must be similar to what they endure.”
Clu had been about to help him up. But Tron always knew how to say the exact thing Clu didn’t want to hear. So Clu straightened and stepped aside, hands behind his back, letting the great security program recover on his own.
“Always the wrong kettle,” Clu muttered.
“What kettle?” Tron rose, choosing to ignore—selectively, as always—the familiar moments where they failed to understand each other. They never truly understood each other, but they didn’t require total understanding. Cooperation was enough. Cooperation kept the system running.
“ISOs are the root of the unrest,” Clu said. “They take up our living space, and they attract Gridbugs. Those attacks—whatever you say—reflect what the programs want.” He couldn’t stand watching Tron sway, so he reached out and steadied him anyway. “At least you didn’t break your head.”
“It's not the time to argue, Clu,” Tron said. “We should leave this place, and investigate the cause of the building’s deresolution.”
They looked around. Then they fell silent.
The structure here was too honest—flat was flat, edges were unadorned, everything existed in its simplest possible form, like modules invoked straight from initialization. In the distance, cubes repeated in a rigid pattern, monochrome and sharply bounded, but without hierarchy, as if the world had been forced to stop updating at some early version checkpoint.
“This place…” Tron began, his voice swallowed quickly by the empty space, “feels like an early Grid.”
“Looks like something that should’ve been replaced,” Clu said. “Flynn shouldn’t have let anything this crude exist.”
Tron didn’t argue. He walked forward a few steps; his footfalls struck the plane with a clean, direct echo. Everything here obeyed the simplest logic—no redundancy, no hidden paths. In a sense, it was safe. It didn’t mislead. It didn’t betray the caller.
Tron stopped and stared at the repeating geometry. He did not continue the debate over versions.
“We need a way out,” he said, rolling his shoulder, testing the injured back. He no longer needed Clu’s support.
“We’ve achieved a whole millimeter of agreement,” Clu said with a thin edge of sarcasm.
“—And then we investigate why the building collapsed,” Tron continued, unbothered. “This was a major safety incident, whether the cause is internal or external.”
“I know,” Clu snapped. “I know you want to do your job. But Flynn just left—he said he was going to upgrade hardware from the outside—and then all this happened.”
“What are you implying?” Tron turned, anger flickering through him in a way he rarely allowed. “You can’t speculate about the User. He’s been working for improving our life quality.”
“It’s not about that.” Clu pinched the bridge of his nose, trying—genuinely trying—to be understood. “I’m saying outside-world intervention matters. And his mind is too occupied by the ISOs. How many cycles has he been gone? He comes down to make space for them, to install new drives. Why not come down for us—why not do more for our survival?”
“Because he’s busy, Clu,” Tron said, as infuriatingly calm as ever. “Users have many things to do, and— they’re single-threaded. He needs to raise his little copy, Sam.” Tron’s tone did not soften, but it carried its own stubborn warmth. “He bears responsibility for two worlds. We should be grateful.”
“Couldn't you stop having so much sympathy for other's lives, Tron?” Clu paced in the fluorescent geometry, leaving no footprint, no trace. “Look at us. This is our world. Our world is only this world, the one and only. We can’t go to the real world to upgrade our own hardware. We can’t fix any of the external problems. I hate being held in someone else’s hands.”
“…Have you lost faith in the User?” Tron asked, after a long silence. The question came out differently from his usual declarative, rational cadence. Something like an unclassifiable current ran through him. Something was leaving, and he couldn’t grab it with a loop of 0 and 1.
Clu was changing.
——————————
…NO! NO! NO!
The sound didn’t come from any direction.
It was more like it was inserted directly into the processing flow of the geometric wasteland—short, explicit, impossible to ignore. Something in the air flashed once, then changed shape.
A Bit appeared between them.
Not large. Floating just above the ground. It flickered through basic geometric forms, switching faster than the environment’s refresh rate.
“Bit?” Tron spoke first.
The object snapped toward him, flashed once, then spun back toward Clu. Its geometry stabilized in an instant. It drifted closer—almost into Clu’s personal space—and pulsed with insistent brightness.
YES!
Clu took a half-step back.
“Not now,” he said, irritation plain in his voice. “Leave us alone.”
The Bit ignored him completely. It circled Clu as if reconfirming his status, then stopped in front of him, brightening into a stronger affirmative signal.
YES! YES!
“…Is that supposed to be your Bit?” Tron asked.
“I don’t have something this stupid,” Clu said. “Waste of space.” He reached out and caught the spinning Bit—then paused, as if briefly considering whether it had any right to exist at all.
Then he let go.
“Lead the way. We’re going up. If you’re useless, I’ll delete you,” he said, plainly dismissing Tron’s disapproving sound. The Bit—unbothered, unthreatened—flashed a firm YES and drifted forward into the air, moving with unmistakable certainty.
“This looks like the old Grid,” Tron said, breaking the tense quiet, trying to give context. “The Grid still under MCP's control. Where I first met Flynn. There shouldn’t be any obvious exit routes.”
“So this is nostalgia, the word in the User’s mouth. Fantastic.” Clu laughed, sharp and humorless, gaze fixed on the floating Bit. Why did it recognize him? “Flynn said there was a Clu 1 back then—just not the same functionality. I almost miss those days, when he did everything himself. Now he leaves everything to us—and still manages to make a mess.”
“Now is not the time to complain, Clu. If we can’t get out—”
The light lines on Tron’s body flickered weakly, and he could no longer hide the internal damage. The moment he stood, the system began a second verification of his status. The superficial damage had been smoothed over with an energy bar, leaving him looking almost intact—but the deeper errors persisted.
Clu noticed immediately.
“I can continue,” Tron said preemptively, and kept following the Bit. Each step maintained that maddening elegance, that refusal to show weakness. Clu frowned, grabbed his arm, and offered support.
And for the first time, Tron didn’t shake him off.
The Bit stopped flickering frantically and settled into a steady, gentler glow. It led them along a path that wasn’t obvious in the wasteland—toward structures that began to shift: edges less sharp, planes connecting with slight bends, lines stretched and softened like a buffer zone.
The Bit halted.
Ahead was an energy pool.
Not neatly shaped—formed by irregular geometric slabs, light flowing through it slowly, not bright, but continuous and stable.
The moment Tron saw it, tension eased from his shoulders.
“Sit,” Clu ordered.
“I still—”
“Sit.” Clu didn’t allow him the space to finish.
Tron hesitated for less than a refresh cycle, then complied. He sank to one knee. The pool’s light climbed his outline, and for once the system was allowed to perform real repair. The Bit circled Tron once, softly luminous, its geometry settling into the simplest possible form.
Yes.
Clu stood aside and watched Tron’s status return toward normal operation, and yet a strange irritation rose in him—wordless, sour, stubborn.
“You’re badly hurt,” he said.
“It won’t affect the next steps,” Tron replied with eyes closed. “I simply need time to recover.”
“You always say that,” Clu said, and the laugh that followed was too thin to be amusement.
Tron opened his eyes and looked at him. The gaze was clear, but pressed down by fatigue that wasn’t purely cosmetic.
“If we hadn’t moved together,” Tron said, “you would have fallen into a deeper layer.”
“I know.” Clu’s voice tightened. “So you decided for me. What if there hadn’t been an energy pool here? Did you think about that? The Grid can’t lose you right now. Flynn comes down once every how-many cycles, and we don’t even have a way to contact him—and even if we did, it might not help. You were written by Alan One. Stop making your job harder.”
Clu grabbed the front of Tron’s suit, frustration turning oddly personal.
“And—” his words caught for a fraction of a cycle. “I can’t lose you.”
He realized what that sounded like, so he patched it, quickly.
“…My work needs you. So I can’t lose you.”
“I made the correct choice, Clu,” Tron said, like an exhale.
“You treat ‘correct’ like it’s a natural law,” Clu said. “Like the moment you decide it’s correct, it becomes legitimate. I’m sick of that.”
“Without correct judgment, the system can’t run,” Tron said. “And I trust our User.”
“Stop calling Flynn our User!”
Clu stared into Tron’s eyes. Optical imaging caught pure blue—data-stream-blue—like something scrolling underneath. Neither of them spoke.
In that brief pause, space changed.
Not another collapse. Not a refresh failure. Something more familiar. More brutal.
Intervention.
Permission cascaded down the call chain. The light in the air straightened, compressed. The boundary of the world began to tighten inward.
Tron lifted his head on instinct.
“Flynn…” he said.
For the first time, his tone was close to hope.
Clu understood at once. This was what Tron had meant before—something only the User could do. A pull was forming. The light-field opened in front of them like a prepared corridor, waiting for entry.
“I didn’t authorize this,” Clu said, stepping back, Bit caught in his hand.
“What are you waiting for?” Tron said, urgent. “Flynn is pulling us out. We have to go.”
Tron didn’t hesitate. He didn’t reevaluate his condition. He grabbed Clu’s arm, the grip stronger than before, almost dragging him toward the center of the light-field.
And in that moment, something became sharply obvious to Clu:
If this world ever had to be rewritten, if order had to be achieved at the cost of erasing uncertainty—then the first one to stand against him would be Tron.
Not out of hatred. Not out of betrayal.
Simply because he was Tron. He would always do it.
That realization lasted a fraction of a cycle.
Tron pulled him forward. The light-field snapped shut. The pulling force latched onto their core structures.
Light swallowed them whole.
——————
Flynn stood in front of them, exhausted—and still carrying that almost unwearable enthusiasm, the Creator’s eagerness to fix what he had just realized was broken.
“Hey, you guys okay?” he said, smiling, talking too fast. “I came back and saw the warnings—full red, the kind you never want. That’s on me. I was gone for a second—really, just a second—Jordan called. But you handled it. You handled it really well.”
Tron handed over the disc without protest. Flynn joked and chatted as he worked, calloused fingers building new art with brisk precision. He explained—his carelessness, the unexpected hardware fault—words spilling out of him like they always did, too many, too alive, almost irritating.
Clu stood to the side, as if temporarily cut out of the flowchart, a process paused but not terminated. He watched Tron trust those hands without reservation. He watched the light cover Tron’s wound and watched Tron slide back into that safe, reasonable, fully-defined place.
A belated discomfort arrived in Clu like delayed damage.
Flynn explained how the collapse happened, how it wasn’t any program’s fault, how the system was stable, how they did well, how “we’ll fix it.” He said it lightly, like he was talking about a deviation that could simply be corrected.
But some things couldn’t be repaired.
Clu knew that now.
“We almost didn’t make it back,” Clu said, flatly.
Flynn froze for a beat. He looked up. The bright smile hesitated—then was quickly plastered back into place.
“Yeah, yeah, I saw the logs,” Flynn said. “That was close. But you were professional. Tron—you saved Clu, right?”
He said it like praise.
Tron nodded.
“I did what I was supposed to do,” he said.
Clu stood there, quietly.
End Of Line.