Disclaimer: I do not own Thor, Supergirl or anything else you may recognize

Thank you to everyone who has favorited, followed or reviewed this fic so far.

Also, I edited the previous chapter a little to add Lisa to the scene where Barry, Caitlin and Patty check up on Cisco.

Guest: Thanks for the review. Makes sense to me what you say on Brightburn, just wish the movie showed it better is all.

Chapter 5- Earth-X

Donald, Kara, Oliver, Barry, Clark, Ollie, Simon, Lois, Chloe, Nyssa, Laurel, Felicity, Thea, Roy and Sara stood in front of the cell Prometheus was in. Being cuffed, he couldn't move his hands much.

So he pushed back his head, throwing down his hood in the process. And then with some effort, he managed to bring his hands up to his face and used their backs to push off his mask.

Everyone in the room gasped in shock and horror on seeing the face underneath, especially the ones from Earth-38.

"Gives a whole new meaning to hating yourself", Ollie said, looking at the man in the cell, who looked every bit like him, and even had the exact same smirk on his face. Only, his smirk was an evil and dark one.

"What the hell?" Chloe said, looking between Ollie and Prometheus in shock, just like everyone else.

"Yeah, it's me", Prometheus smirked. "I know I look handsome, so you can stop staring."

Looking at the others, Ollie said. "Can I have a moment alone with myself?"

Donald, Kara, Oliver, Barry, Clark, Simon, Lois, Chloe, Caitlin, Sara, Lisa, Roy, Thea, Nyssa, Laurel, Felicity, Stein, Jax, Mick and Harry stood in the main lab.

"So we're dealing with visitors from another Earth", Barry said to everyone in the lab.

"Looks like it", Oliver agreed.

"There are more than one?" Jax asked surprised.

"There are infinite", Kara said. "Which makes finding out where these guys are from a lot harder."

"As if it wasn't already hard enough", Donald said.

"I'm really hard-pressed to think of an Earth where an army of robot like aliens and their gorilla like counterparts are resident", Stein said.

"Me too. But looks like it exists", Clark said.

"I think I know one", Harry said as he came forth, drawing their attention.

He then typed on the computer and a very disturbing video appeared on the screen.

It showed a video of some advanced flying chariots which rained fire down on the people of Earth, destroying buildings, roads and vehicles and killing many, while those aliens also shot down more people with those gorilla like counterparts ripping them apart, and some very monstrous black creatures with four arms were also running around, murdering people.

"There's one very hellish Earth", Harry explained to the horrified viewers. "And it's called Earth-X. It doesn't have a designation because it's a place so awful, so horrific, no sane person would ever travel there. It's basically our Earth-same history, same timeline- until these aliens attacked and took over, with help from some super powered people on Earth, who work for whoever is the boss of these aliens."

"So traitors to their own race", Simon said.

"This is just twisted", Roy said to everyone.

"Tell me about it", Lois said.

"And one of these race traitors is the evil doppelganger of my husband", Chloe said, disgusted. "I'm gonna be sick."

"And they're not just happy ruling one Earth, I think I'm gonna be sick too", Felicity said.

"Yeah, line starts behind me", Jax added.

"W-we have to find them", Kara pointed out the best course of action. "I mean, do you think they're using the breach to hop between worlds?"

"That or they're operating from a staging area somewhere in Central City or close by", Alex said.

"Hope it is what Alex says", Donald said.

"Well, good thing we have a metric ton of smart people in this building", Barry said as he looked from Harry to Stein to Caitlin to Chloe to Felicity to Rory. "And Rory. Let's get to work on finding our new friends from Earth-X."

"Earth-X huh?" Ollie asked as Prometheus nodded.

"Let me guess, you got stuck on an island?" Prometheus asked Ollie.

"Yeah, for 2 years", Ollie said. "Learnt some archery to hunt, then took out a bunch of drug dealers and used their boat to escape."

"2 years, hunting and drug dealers. Sounds like a picnic compared to what me, my wife, who was my girlfriend back then, and my brother went through", Prometheus said.

"You have a brother?" Ollie asked and Prometheus nodded.

"We got stranded too. Only we had to struggle to survive every single day. We met a man who was exiled on the island. And another who trained us to survive and open our eyes to the reality of the world", Prometheus said. "He turned us from boys to men, and my wife from a girl to a woman. In our third year, we got picked up by an organization called ARGUS, which gave us a mission, and also put our teacher and my wife through a procedure that turned him into a super human soldier and her into a real screamer. And that backfired on them, since they killed them all, and made the death of their bitchy boss Amanda Waller especially slow and painful, with my wife screaming into her ears. Acoustic never couldn't handle it. Then, we took over ARGUS, and decided to expand our reach over the world. Then he attacked the Earth, and said everyone who took his side would be allowed to rule alongside him. By then we knew humanity couldn't do a thing by itself, it needed guidance of someone superior. So ARGUS helped his army capture major cities, and consolidate our position."

Ollie just took it all in, nodding at what he had been told and processing it, as his horror increased.

"Sorry about what you went through", Ollie said. "But it doesn't justify your actions."

"You lot really are special kind of idiots", Prometheus said with a smirk and an insane look in his eyes, which terrified Ollie since the face was his. "Your naiveté would be charming if your weakness wasn't so pathetic."

Ollie sighed regretfully as Prometheus asked. ""Is this how it is on your planet- everybody swayed by sentiment? Sentiment is a weakness. On my Earth, those who agreed with us were allowed to come on our side, including mine and my brother's best friend, who is also like a brother to us, and everyone against us was rooted out and taken down brutally. Even my own mother, whom I disowned."

Ollie clenched his fists, boiling with rage as Prometheus said. "Everyone is so weak here. Our Lord will change that. The weak will be eliminated. Your entire world will be enslaved, but you, you-You won't be around to witness it. He is going to feel all your skulls crack under the weight of his powerful feet."

With a maniacal look, he said. "Everyone you care about, everyone you love, they're going to die badly. In ways that would give even monsters nightmares. You will all feel the wrath of OUR LORD!"

He slammed his face on the glass he said that, drawing some blood and laughing maniacally as Ollie glared before turning around and walking off as his crazy doppelganger yelled behind him. "IT IS POINTLESS TO RESIST! THOSE WHO RESIST WILL HAVE THE WORST PUNISHMENTS OF ALL!"

Dark Arrow held a device in his hand and said. "My brother is still alive."

"I am sure he is telling them how his loving wife is gonna scream her heart out at them", Dark Siren said with a cruel smirk.

"Oh yeah, he is totally off his rocker", Zoom said.

"What did you say?" Dark Arrow asked, glaring at him.

"And here we go again", Dark Archer rolled his eyes.

"I said he is off his rocker", Zoom said with an infuriating smirk.

"Keep your focus where it belongs and get to work on locating that Prism", Dark Arrow snarled, glaring into his eyes.

"And if you don't, I will scream what you have to do in your ear to make you focus", Dark Siren said.

"Watch your tone", Zoom said calmly as he stood next to Dark Arrow. "Or I'll watch it for you."

Dark Arrow suddenly grabbed the speedster by the collar and pinning him to the wall, put an arrow to his throat.

"Oliver!" Overgirl tried to stop him.

"Why shouldn't he be allowed to blow some steam?" Dark Archer said with a smirk.

"Did you just tell me to watch my tone?" Dark Arrow asked angrily.

"I think he did", Dark Siren said, glaring at Zoom.

"You're angry", Zoom said to Dark Arrow and Dark Siren as he smiled. "And I like it."

"Don't you mock me", Dark Arrow growled.

"This is getting interesting", Brightburn said in amusement.

"Children", Terminator muttered as he rolled his eyes.

"Don't threaten me, or have you forgotten?" Zoom said as he started vibrating his hand and moved it closer to Dark Arrow's heart. "I can end your life before you birth your next thought."

Suddenly, Overgirl grabbed his wrist tightly.

"Try it once I break every bone in your body", Overgirl threatened.

"I will do it before you do", Dark Siren said, aiming her scream at Zoom.

Heat Vision suddenly hit the ground near them and all backed off, with Dark Arrow and Overgirl letting Zoom go as they turned to Brightburn, whose eyes stopped glowing.

"Our man, your brother", Terminator said to Dark Arrow before turning to Dark Siren. "Your husband is captured, and you are all fighting like children. It accomplishes nothing!"

"It's the accomplishing nothing that has me concerned", Zoom said as he did gestures with his hands. "Or have you forgotten?"

"Watch your tone!" Brightburn said firmly as he pointed a finger at the speedster. "Locate the Prism and stop complaining like an 8 year old weak child."

"And that's how people are put in their place by my cool cousin", Overgirl smirked.

"We need that Prism. We're running out of time", Dark Arrow said.

"You should trust in the plan, Oliver", Overgirl said to him. "It is our Lord's plan."

"And do you trust me?" Dark Arrow asked.

She put her hand on his face and said. "Yes, with all of my heart."

The two then shared a passionate kiss.

And we finally got some backstory in this chapter. So yes, Prometheus is Earth-X Ollie, and I hinted at it a few times. In Chapter 1, when I hadn't disclosed the identities of the two archers, I had him use a shuriken, and in the previous chapter, his archery was compared to that of Ollie.

And well, he didn't die in this, since it's clearly someone else behind the scenes.

Hope all enjoyed the backstory of Dark Arrow, Prometheus, Terminator and Dark Siren.

And I know I said this in 'Fight as one' too, but these writers really hate their continuity. In Season 2, we had infinite Earths and suddenly there are only 53? What the hell do the writers smoke?

Hope everyone enjoyed and see you all next time with another chapter. Stay safe from the coronavirus ya all!