Authors Note: Okay, so from that point on, the episode would pretty much play out like it does in the actual episode, except of course for the part where Mon-El flies through the portal in space. And the dialogue would change a little in the conversation Kara has with Cat about loosing someone. So this next part is just a little tease for a story I might try writing, as well as something I would like to see them do next season even though it has little to no chance of happening.

Kara is flying over the city with a smile on her face. She's just come back from visiting Mon-El on Earth-1. It's been a rough transition, especially since the search for a way to let him come back to Earth-38 has not been beneficial, but they've both come to terms with it and are making the best of it. Yet, deep in Kara's heart, she hasn't fully accepted it. In fact, she's furious about it. She enjoys being able to go to him whenever she can, but she wants him with her all the time. To help her protect the city, to go with her to Alex and Maggie's wedding, etc. She never lets the anger out because she doesn't want to because she knows she's figured out the best way to have at least some of what she wants. But maybe she needs to let it out. Otherwise that anger might build up. So much that...

Kara is flying when suddenly a red light in the distance catches her eye towards the canyon.

She suddenly here's a faint voice whisper "Kara Zor-El of Krypton."

She stops and hovers to try and pinpoint where exactly it's coming from. When the light flickers again, she thinks she sees where it's coming from and blasts towards it. But as she gets closer to it, seeing it is a blazing blood red beam of light, she realizes that whatever it is, she's not heading toward it. It's heading towards her. Now concerned about what it may be, she immediately flies back the way she came, but the beam increases its speed to pursue her. She tries to evade it by swerving through some buildings, but it persists and keeps up with her and is slowly gaining on her. She keeps trying to evade it and at a point thinks she has until she's above a park area filled with people. She looks around and smiles when she sees Alex and Maggie walking arm in arm. They smile and wave at her when they notice her. Alex and Maggie's happy faces suddenly turn to major concern.

Alex screams "SUPERGIRL! LOOK OUT!"

Before she can turn around to see what she's talking about, she is forced to the ground my a giant humanoid figure. The impact creates a crater and everyone, except Alex and Maggie, run in fear. Kara is a face down in the dirt. Her vision is hazy and her ears are ringing as she sees and hears people crying out in fear at what they're seeing. She brings herself onto her knees and turns her head to see what they're looking at. As her vision begins to clear up, she sees a giant monstrous figure holding a large red object by a thin handle in his left hand. He looks like he's made of molten lava and has what looks like several mini volcanoes all over him. And hovering next to him is what appears to be a black cat in a red shirt. Both wear a strange glowing symbol and a red ring. The figures ring is on his middle finger on his right hand, but the cats is on it's tail.

The figure with a gravelly booming voice says "Supergirl!"

Before he can say another word, bullets start bouncing off his shoulder. He looks to his left, and Kara to her right, to see Alex and Maggie have drawn guns and are opening fire on the figure. The cat hisses and throws a blast of red energy from its tail that throws Maggie back a few feet and to the ground.

Kara says "No!"

Alex yells "Maggie!" and drops her gun as she runs to her aid.

Kara looks back toward the figure and says "Who are you?! What do you want with me?!"

The figure says "I am Atrocitus! You have great rage in your heart! Powerful, untapped Rage!"

Atrocitus lifts and opens his right hand and the red beam that was chasing her flies into his hand and reveals to be a small red ring with the same symbol on it as the one Atrocitus and the cat wear.

Atrocitus says "You now belong... to the Red Lanterns!"

Kara flies toward him, ready to throw a punch. But Atrocitus blasts her with what looks like blood, coating part of her face and a small part of her costume. Kara falls to her knees and screams in pain, putting her hands on the sides of her head.

Kara screams "What is this?!"

Atrocitus says "Give in! Unleash your Power! Unleash your Anger!"

Atrocitus, pointing his ring at her, traps her in a beam of solidified red light that forces her left arm forward and her hand open. Kara grunts as he forces her body to do so. She is breathing hard from fear of what's happening. The ring floats from Atrocitus' hand and above Kara's, above her middle finger. Over with Alex, Maggie is alright. The force from the blast just knocked the wind out of her a bit. Alex looks back toward Kara and starts running towards her to try and help, but she's not fast enough. The ring starts to slip it's way down her finger. As it does, Atrocitus has a sinister grin on his face as he uses his ring to create a portal of some kind that he and the cat walk through. The portal disappears when they do and they are gone. The ring finishes placing itself on her finger and Kara falls on her back, gripping the arm that the ring is on and screaming even louder in pain as the energy surrounding her body brightens. Alex shields her eyes from the light. The energy starts to alter Kara's suit, changing it from navy blue to a blood red with a little bit of black, and the S on her suits symbol disintegrates and becomes the symbol on the ring. The transformation stops and Kara flips herself over onto her knees, her head ducked down and her hands gripped in the dirt. Alex slowly walks toward her. She looks around and sees that all the people have been evacuated.

Alex says "Kara?"

Kara says something, but she says it so faintly that she can't understand it.

Alex says "What?"

Kara says "I said... Leave me ALONE!" and as she does, she releases a red shockwave that throws Alex back, but again, it isn't enough to cause any significant harm. Alex grunts when she lands and looks up to see Kara blast off with a red streak following her.

The Supergirl title card appears, but the symbols S also changes to the Red Lantern symbol and the text that reads "Supergirl" crumbles away with an ominous tune playing.

Authors Note: Okay so my description of Atrocitus probably sucked so just look up his standard look in Injustice 2. That's the design I invisioned for this scene.