Supergirl: Alien Invasion

Kara stepped forward, tense.

"What? What's in there?"

The scientist exhaled shakily. His voice was trembling. "Alien," he said. "We found it in the mountains. We weren't sure at first, but we brought it here to study. It grew fast. Too fast. We couldn't stop it. So we froze it."

Janet's eyes widened.

Kara wasn't as surprised — she was from Krypton. She already knew aliens existed. But still… she had no idea what alien species the man was talking about.

A second after. Suddenly, the thing started growling.

Both Kara and Janet raised their weapons, aiming at the tank filled with flickering green liquid.

The growling grew louder.

Then—

CRACK.

A long, black claw burst through the glass.

Green fluid sprayed outward.

Janet stumbled back.

The tank shattered in a violent explosion of glass and liquid, and something massive began to rise from the mist.

The creature was white, standing tall on two legs like a lizard — but there was something off about it. Something… humanoid. It had long, razor-sharp claws, a mouth full of jagged teeth, and pointed spikes running down its back all the way to its tail.

It looked almost reptilian, but the way it moved, the way it held itself — it felt wrong.

Unnatural. Alien.

Janet and Kara didn't wait.

They raised their weapons and opened fire.

Bang! Bang! Bang!

The scientist, terrified, scrambled away and ducked behind a table.

Suddenly, the lights stopped flickering. The lab was fully lit again.

They could see it clearly now. The bullets didn't work.

The creature stood tall, the casings scattered on the ground around it — but not a single wound.

It turned its head slowly toward Janet.

She stared back, frozen for a second.

"…Shit," she whispered.

Kara's eyes widened.

She recognized it.

That creature — it was one of the things locked up back on Krypton, deep in the prison she had wandered into as a child. Back then, it was just a baby… and black in color. But the shape, the energy — there was no doubt. It was the same species.

Before she could think further, the monster lunged at Janet.

Janet ducked and ran, darting behind the shattered remains of the tank. But the creature didn't stop — it followed relentlessly.

Kara raised her gun and fired again, trying to aim for its vital points. But her shots missed, bouncing off its hide.

Her mind raced.

Should I reveal myself?

Clark had already revealed himself as Superman. He was respected — yes — but also constantly in the middle of public drama, criticism, attention. Kara had stayed in the shadows for a reason. She knew once she stepped into the light, everything would change. Her identity. Her life.

Was now the time?

A scream.

Janet fell hard to the floor, her back scraping the tiles.

The creature towered over her. Its mouth opened, and thick saliva dropped down, sizzling against her gun. She raised the weapon and pulled the trigger—

Click.

Out of bullets.

Janet's eyes widened. She froze.

The creature lunged.

And then — boom — it was slammed backward, crashing into the lab wall with a snarl.

Janet gasped, blinking.

Standing between her and the creature was Kara.

But no gun.

Just her bare hands.

Janet stared.

"What…?"

Kara didn't stop there.

Janet, still lying on the ground, looked up — and noticed something.

Kara's eyes… were changing.

They began to glow.

Bright red.

Then — BOOM — a laser beam shot straight from Kara's eyes and struck the monster in the chest. The blast lit up the room.

The creature screamed in pain as its body caught fire. It thrashed violently, crashing into the lab walls. Flames spread across its skin.

Then — boom — it burst, its body erupting in a fiery explosion before collapsing to the ground in a smoldering heap.

Silence.

Kara stood there, breathing heavily, her eyes slowly fading back to normal. Smoke curled from her fists.

Janet slowly got to her feet, staring in disbelief.

She gasped.

Her best friend — the woman she'd worked with, laughed with, trusted — was…

"Y-You're… You're like him…" Janet whispered. "You're… like Superman."

Kara sighed a few times before walking toward Janet.

She held out her hand and pulled her up.

"I'm sorry I didn't tell you," she said softly.

Janet stood still, staring at her. She gasped — she didn't know what to say. She was shocked. Words failed her.

A few minutes earlier…

On the other side of the building, Jake and Jacob had made it down a different hallway and reached another lab. This one was much bigger than the others — almost like a full research facility.

Inside, the lab looked active.

There were scientists working.

Jacob's eyes widened. "Oh shit — hide, hide, hide."

Before they could move, the scientists noticed them.

But… they didn't panic. They didn't run.

They just stood there, staring — with blank, tired eyes.

And then they started walking toward Jake and Jacob. Slowly. Almost like they weren't fully human anymore.

"What the hell is wrong with them?" Jacob muttered, backing up.

Jake narrowed his eyes. "I don't know. They look… mindless."

"Hey!" Jake called out. "What do you want?"

The scientists didn't answer.

Instead — all four of them sprinted forward at once.

"Oh, f**k!" Jake yelled, raising his fists.

The fight broke out.

Jake and Jacob were trained — strong and fast — and at first, they held their ground. But the scientists weren't weak. They moved like they didn't feel pain. Even when knocked down, they got back up.

Then, one of the scientists grabbed a metal tray that had fallen — and on it was an injector, filled with a thick green liquid.

The substance glowed faintly under the lab lights.

Jake saw it — and froze.

Whatever it was, it didn't look like medicine.

It looked really dangerous.

Poisonous. Maybe worse.

The scientist suddenly lunged from behind and jammed the injector straight into Jacob's neck.

"No!" Jake shouted.

He tried to reach them, but he was still locked in a struggle with another scientist. He couldn't stop it in time.

The liquid emptied into Jacob's bloodstream in seconds.

Jake's heart pounded. Without hesitation now, he reached for his sidearm, pulled his gun, and fired — clean shots, quick and precise.

All four scientists dropped to the ground.

He rushed to Jacob's side.

"Jacob! Are you okay?"

But it was already happening.

Jacob's skin was turning pale. His veins started to darken, his blood tinting green beneath his skin. He gasped, choking, his hands clutching at his throat.

"Damn it," Jake growled, trying to hold him still. "Come on, stay with me!"

He grabbed his radio. "Kara! Janet! I need backup — now!"

Before he could say more, the hallway lights flickered.

Footsteps.

More scientists began pouring into the lab from the other side — silent, lifeless, and coming fast.

One of the scientists had a gun.

Jake thought, Oh god, this isn't good. He quickly stood up, ready to fire, but before he could act—someone appeared right in front of him and punched the armed scientist square in the chest. The man was flung backwards, crashing into a table, which shattered beneath him. He hit the floor and didn't move.

Jake's eyes went wide.

It was Kara.

She looked back at him and said, "I'll explain later."

Before Jake could respond, a storm of bullets tore through the air—fired straight at Kara. But the bullets bounced harmlessly off her. Without hesitation, she turned and launched herself into the fight.

Jake just stood there, stunned.

"She's one of them," said Janet, suddenly appearing beside him and dropping to her knees next to Jacob. Jake hadn't even noticed she was there.

"Let's get him out of here," he said urgently.

While Kara fought off the remaining scientists, one of them rolled a small canister across the floor—a gas bomb. In seconds, the room filled with a thick red mist.

Kara glanced around, torn. She wanted to dig deeper, to find out what the hell was really happening in this lab. But Jacob's life mattered more.

She bolted through the smoke.

Jake and Janet struggled to lift Jacob toward the elevator, but Kara caught up to them just in time.

"Hand him over—I'll carry him," she said.

They made it out of the building, rushing toward their car as alarms started to ring faintly in the distance. Kara held Jacob in her arms, moving faster than any of them could.

None of them spoke.

There was only one thought in all their minds:

What the hell is happening in that lab?

Everyone piled into the car. Jake jumped into the driver's seat, starting the engine with shaky urgency. Janet sat in the backseat, cradling Jacob's limp body next to Kara.

Jacob was still shaking, pale, his veins glowing faintly green. His eyes opened slightly, then fluttered shut again—his breathing weak and shallow.

"Oh my god, what do I do?" Janet whispered, her voice trembling. "Kara—you're like Superman. You have to know something. Is there anything you can do?!"

Kara looked down at Jacob's neck where the injection wound still pulsed faintly. The green infection was spreading, creeping up under his skin. She hesitated for a second, mind racing.

"…Maybe," she said softly.

She leaned closer to Jacob, gently moving his collar aside to expose the injection site. Taking a deep breath in, she narrowed her focus—and exhaled. A stream of icy breath, carefully controlled, blew over the wound. Frost began to form along his skin, the green veins visibly slowing their spread.

Janet gasped. "Holy crap… did that actually help?"

"It won't cure him," Kara said, still focused. "But it might slow the infection. Give us time."

Jacob stirred faintly, letting out a groggy sound—barely conscious, but still alive.

The car continued racing down the highway in silence for a few tense minutes.

Kara stared out the window, her mind heavy with everything that had happened. The night sky stretched out above them—cloudless, wide, quiet.

And then something caught her eye.

Far up in the atmosphere, a small, metallic shape hovered—barely visible from this distance, but unmistakably there. It shimmered, floating eerily in place. Not a star. Not a plane.

Kara's eyes locked onto it. She leaned forward, squinting.

"What is that?" she said softly.

Janet looked at her, confused. "What is what?"

"That thing in the sky…." Kara said with a small hesitation. She stared at it for a few more seconds.

It was watching.

She didn't hesitate.

Before anyone could speak, she opened the car door and shot out into the sky.

"What the hell?!" Jake shouted, swerving slightly as the door flung open.

"Where's she going?!" Janet yelled from the backseat, still holding Jacob.

Kara flew fast and hard into the sky, chasing the object—but as she got close, it shimmered again.

And disappeared.

No sound. No flash. It just blinked out of sight like it had never been there.