In the pipeline, Barry and the others are watching Prometheus as he removes his mask and Oliver, Sara and Felicity look like they've seen a ghost.

"Oh my god." Felicity says, seeing his face.

"Oh my god, what? Felicity, who is that?" Caitlin asks Felicity.

"That's Tommy Merlyn." Sara explains.

"He died about four years ago." Peter adds, he met Tommy and they easily became friends before he died.

"Oliver, who's Tommy Merlyn?" Barry asks his friend.

"Thea's other brother...and best friend." Oliver explains in complete shock he's alive and moves closer towards the cell. "We're gonna need a moment alone." Je tells them and they leave them and hear back for the cortex.

-

"He's a crony." Mick tells them and they're confused to what he's saying.

"Anachronism." Stein says, correcting Mick.

"That's what I said." Mick states.

"Lately we've been dealing with anachronisms. It's people and things displaced throughout time." Sara explains.

"Okay, but why would Nazis from 1945 wanna crash someone's wedding?" Frankie asks, not getting their plan.

"Crab legs. They were delicious." Mick says and nobody couldn't argue with him.

"Well, she has a point, though." Peter-38 says from across the room. "If they're out of time, they would be targeted the military or law enforcement."

"Tommy was plucked from the past and put in the Prometheus wardrobe? That doesn't make any sense." Felicity tells the group.

"It does make sense if we're not dealing with an anachronism." Caitlin states to them.

"You think they're visitors from another earth?" Peter asks her, seeing what she's thinking.

"Whoa. There are more than one?" Jax asks them.

"There are 52 actually." Kara says.

"Though I'm hard pressed to think of one where Nazis are ascendant." Stein informs them.

"I can." Harry says and they turn to look at him leaning against the wall. "There's a 53rd earth, and it's called Earth-X." He states and goes over to the computers and shows footage of the Nazis winning WWll.

"It doesn't have a designation, because it's a place so awful, so horrific, no sane person would ever travel there." Harry explains to them as they look at the screens in horror. "It's basically earth. Same history, same timeline, with one crucial and critical difference."

"Let me make a hypothesis. The Nazis invented the atomic bomb before the United States did, and were more than happy to use it." Stein guesses and Harry states she's right.

"Yes, the Nazis won the war, and New York, London, Paris, Moscow...all obliterated. The SS set up outposts, not only all throughout Europe but also all throughout the Americas, and Hitler continued his brutal reign aided by prime ministers and presidents until his death in 1994." Harry finishes explaining.

"Now they're not happy ruling just one earth." Felicity says and leaves for some air.

"We have to find them and stop them." Kara states. "I mean, do you think they're using breach to hop between worlds?"

"That or they're operating from a staging area somewhere in Central City or close by." Peter-38 guesses.

"Well, good thing we have a metric ton of smart people in this building...and Rory." Barry states. "Let's get to work on finding our new friends from Earth-X."

-

"Earth-X?" Oliver asks Tommy.

"That's right. And I'm dead on this earth. I'd almost prefer that. I was born into the Reich. The whole world is the fatherland. We don't have elementary schools and summer camps. We have youth groups, military training. We all grow up without a choice." Tommy explains to Oliver, sadly.

"You have a choice now. You can tell me where to find the others from Earth-X." Oliver explains to his friend's doppelgänger.

"On my Earth, you are my best friend." Tommy tells him. "I would die for you."

"I would've died for you."

"Would have?"

"You beat me to it. I lost you. It was like...loosing a limb. And you weren't my best friend." Oliver says and starts choking up. "You were my brother. And you sacrificed yourself for a woman we both loved. And I was right there and I had you right here. You were a good man here. And I believe you still can be."

"No, you don't understand. If I...if I were to talk, if I were to break, the fuehrer will send General Venom to kill my father. He'll kill my mother, everyone that I love." Tommy says in fear.

"I will not let that happen. I will stop him." Oliver promises Tommy.

"You think you can do that?" Tommy asks and Oliver can hear the fear in his voice.

"I promise you that I can do that." Oliver says and Tommy smiles menacingly.

"Then you really are a special kind if idiot." Tommy tells Oliver breaking the act. "Your naïveté would be charming if your weakness wasn't so pathetic. Is this how it is on your planet? Everyone swayed by sentiment? Is everyone here really so weak? The Reich 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 your skull crack under the weight of his boot. Everyone you care about, everyone you love, they're gonna die badly...In ways that would give even monsters nightmares." He drops his mask and reaches for something in his mouth. "I really wish I could live to see it." He states and bites down on it before Oliver could open the cell and dies.

-

In their hideout, Thawne and Venom are working on something when an alert goes off from Oliver's suit and he sees its Tommy's life system.

"He's gone." Oliver-X tells them.

"Who?" Thawne asks him. "Merlyn?" He asks not surprised.

"The biosensors in his suit indicate his heart stopped." Oliver-X explains as he starts getting upset.

"He always see,ed kind of soft to me." Thawne states as Kara comes in. "Oliver."

"He died for you." Oliver-X tells Kara-X. "And we will make his death worthwhile."

"That doesn't change the fact that now we're down a man." Thawne informs them all.

"Keep your focus where it belongs and get to work on locating that prism." Oliver-X commands him, getting frustrated with the speedster.

"Watch your tone...or I'll watch it for you." Thawne warns Oliver and he pulls out an arrow and throws Thawne against the wall.

"Oliver!" Kara-X yells at him.

"Did you just tell me to watch my tone?" Oliver-X asks Thawne.

"You're angry...and I like it." Thawne informs Oliver-X.

"Don't you mock me!" Oliver-X states to him.

"Don't threaten me, or have you forgotten?" Thawne asks and raises his vibrating fist. "I could end your life before you birth your next thought."

Kara-X walks up to him and places her hand against his chest. "Try it, once I crush every bone in your body." She warns him.

"Okay, were all going a little too far here. Here's what I suggest. I will stop vibrating my hand, you will stop crushing my chest, and you be 10% less brooding." Thawne suggests and they all back away from each other and Oliver drops the arrow.

"We accomplish nothing by arguing against ourselves." Kara-X informs them.

"It's the accomplishing nothing that has me concerned." Thawne states to her. "We came here to conquer this earth, or have you forgotten?" He asks them.

"Locate the prism. Please. Once we have identified the location of the target, I will devise a plan of attack." Oliver-X tells Thawne and Von Strucker as they leave to locate it.

"I'm sorry about Merlyn." Kara-X tells Oliver-X.

"He should've died in the church instead of taken prisoner." Oliver-X states. "Kara, we need that prism. We are running out of time."

"You have to trust in the plan, Oliver. You should. It's yours." Kara-X informs him.

"And do you trust me?" Oliver-X asks her.

"Yes. With all my heart."

-

Back at Star labs, they're working on all of their resources to find the Earth-Xers.

"So, Felicity's got her friend working on Palmer technology's spectrometry satellites." Jax tells Harry and Caitlin who are in the labs.

"Okay, what about the Waverider? I mean, a time traveling spaceship must have some sorta way to boost the tracking system placed we could use." Caitlin suggests.

"Not exactly. It's in the stone age. The literal Stone Age." Jax explains.

"Well, parallel earth jumping is Cisco's specialty." Caitlin states.

"And since he's so busy being unconscious right now, I guess we're on our own." Harry replies as Stein enters the labs.

"Oh, perfect timing, man." Jax informs him, "we're trying to find the guys from Earth-X, and we're coming up with nothing."

"I'm sorry, would you excuse us for a minute?" Stein asks the other two, Harry and Caitlin get the hint and leave them.

Peter-38 and Kara are walking down the hallway as they have a minute alone, Peter-38 thinks about what his doppelgänger said.

"We came here for a wedding, and we end up in the middle of a Nazi invasion." Peter-38 recaps.

"Still not our worst day." Kara admits. "And did you really bring a armored suit to a wedding?" She asks him, since he had the suit on him.

"What, you think I rented a tux? With the prices on this earth? No, I disguised my suit so it would look like I was wearing one." Peter-38 informs her.

"That's one way on saving money." Kara guesses.

-

Caitlin leaves Harry and goes to the cortex and finds Peter and Frankie.

"Hey, what are you two doing?" Caitlin asks them.

"Searching the city for any dimensional activity where the Earth-Xers can be hiding." Frankie explains to her.

"You sure you want her here for this?" Caitlin asks Peter.

"Well, her powers can help us with these Nazis and I want her somewhere I know she will be safe." Peter tells her. "What about Ralph or Miles?"

"I heard nothing on stretchy pants. Warned Miles that we might need him to come in sooner or later." Caitlin tells him and that's better than nothing.

Then something goes off and Peter pulls it up. "There's a break-in at Dayton optical systems. It's them." He warns the two.

"How do you know?" Caitlin asks and Peter pulls up security footage to show its the Nazis. "I'll tell Barry." Caitlin says and leaves to find him.

-

Barry, Kara, Peter-38 are the first three to arrive at Dayton and they're waiting for a good second until Oliver comes up in his motorcycle.

He gets off and takes his bow before facing the other three. "Just a quick reindeer. Super speed; I don't have it." Oliver informs them.

"Noted." Peter-38 promises.

"So what do we know about this place?" Barry asks as they walk towards it. "Why are the Earth-Xers targeting it?"

Dark Archer, Powergirl, Reverse Flash, and a new man wearing an iron suit come out of the building.

"Because...they had something we need." Dark Archer informs them as the Reverse Flash is carrying something.

"Whatever you stole..." Oliver starts.

"We're gonna want it back." Barry finishes.

"Your confidence is predictable." Dark Archer tells them. "You four are a team assembled from three completely different worlds. You've all faced some of the greatest evils known to man, and you've defeated them."

"But if you think so highly of yourselves that you can defeat any threat that comes your way..." Dark Archer says as all of the Earth-Xers remove their masks to reveal themselves and the heroes look in shock. "How do you feel about us?" Oliver-X asks them.

"This is sick." Oliver states.

"Do you mean looking at your reflection and seeing only weakness? I agree." Oliver-X replies to him.

"Thawne?" Barry asks Reverse Flash, confused.

"Direct from Earth-1. Do you like my face?" Thawne asks him.

"It's the face you were wearing when I became the Flash." Barry answers.

"I thought I'd put it on again. For old times sake. Plus, handsome." Thawne tells him.

"We watched you die." Barry reminds him.

"Or did you?" Thawne makes him question. "It's time travel, Barry. So very confusing. I always seem to be saying that to you, don't I?"

"Wolfgang Von Strucker." Peter-38 sees the doppelgänger of Iron Baron as Gwen named him.

"I heard you faced off my doppelgänger on your world. Except I'm more powerful than my doppelgänger." Wolfgang promises.

"We'll see about that." Peter-38 says, ready to wipe the floor with this guy the second time.

"Tommy killed himself." Oliver tells them.

"I heard your Tommy died years ago." Oliver-X replies. "That's what this earth does. It's what all of your earths do. Makes people soft."

"We've been watching all of your worlds for sometime." Kara-X says. "And How you've squandered the potential of three worlds. On our earth, we've developed a meritocracy. We've accomplished greatness."

"You're perverse." Peter-38 says.

"No, Peter, you're the perversion. The most powerful beings on the planet rendered weak by saccharine Americana. My pod was blessed to crash in the fatherland." Kara-X tells her.

"Then go back there." Barry tells them.

"This is not your world. Leave." Oliver threatens.

"I don't answer to the likes of you." Oliver-X states. "My allegiance is to the fatherland...and to my wife." He says and looks towards Kara.

"His wife?" Peter-38 asks confused and sees Kara is just as grossed out.

"Gross! No offense." Kara says to Oliver.

"Last chance. Leave or go through us." Peter-38 states, ready to beat these doppelgänger's senseless.

Thawne raises his mask and speeds off, followed by Barry.

Wolfgang takes to the sky and Peter-38 flies up and starts to fight him off.

Oliver pulls out a lead laced arrow and aims at Powergirl.

"And what do you think that's going to do? Bullets bounce off of me." Kara-X informs him.

"Oh, this arrow won't." Oliver promises and shoots it, causing the top to fall of revealing it's made completely out of kryptonite and it penetrates her chest.

"Is that a kryptonite arrow?" Kara asks looking at him. "Why do you have a kryptonite arrow?"

"In case an evil you ever showed up." Oliver explains.

In the sky, Peter-38 and Wolfgang send repulsed blasts at one another, causing them to collide and Peter-38 shoots a web through the blasts and swings Wolfgang around before throwing him into the ground.

Thawne speeds past and hits Peter and Oliver before seeing Wolfgang is unconscious from the fall.

"Get him and the prism out of here!" Oliver-X tells Thawne and they vanish. "Are you all right?" He asks Kara-X.

"I'm pissed." She replies.

"Take it out on that." Oliver-X says looking to a structure in the distance.

The heroes look and see people are going to get hurt and they all make their way over there.

Peter-38 and Kara grab the falling debris and equipment from falling on the ground.

"Get the workers out of here!" Peter-38 tells Barry as he speeds around to make sure they're okay.

"We need to stabilize the building." Barry tells Oliver and Peter.

"On it." Peter-38 says as he and Oliver swing around and keep everything from falling apart and they all make it back to the ground safely. "Sites clear and stabilized." He now assures them.

"Let's not celebrate yet." Olive tells him. "We gave those doppelgängers the window they needed to escape."

"Escape with what?" Kara asks.

-

"Dayton optical systems call it the Prism." Felicity says, looking over the information she received.

"What on earth do they need a sub-light generator for?" Harry questions. "It's basically a spectral emitter that uses quantum entanglement."

"They could also use it to create a stable fusion reaction." Caitlin says.

"So, you're saying the device they stole can be converted into a neutron bomb?" Peter asks the two.

"Exactly." Harry replies.

"The bottom line is that we have to catch these parallel earth goose steppers." Felicity says as Barry comes in with the kryptonite arrow.

"This might help that." He says, handing it to Caitlin.

"I know I shouldn't have to ask the question, but I am. Oliver didn't shoot Kara, did he?" Felicity asks.

Sort of. The other archer and flying woman are Oliver and Kara from Earth-X." Barry informs them all.

"When you said that Earth-X was horrible, you might have undersold it." Caitlin says, looking towards Harry.

"And also the Reverse Flash from our earth is working with them." Barry says.

"He's an idiot." Harry states.

"Okay, if that arrow has evil Kara's blood on it, we could track it using quantum analysis." Peter says.

"Hey, guys, I think I have a quicker way." Peter-38 says from the labs and they walk up to see him on the computers. "These red blood cells are laced with shortwave radiation." He explains what he found.

"Solar radiation?" Caitlin asks.

"Yeah, incredibly high amounts." Peter states looking at what he found.

"Can you track that?" Barry asks them.

"Well, I once caught a deranged serial killer off his face cream, so..." Felicity explains and they all get to work.

"Let's just do it, fast." Barry tells them.

-

In their hideout, on the outskirts of both Central City and Starlight City, Thawne is on work with the prism as Wolfgang didn't survive the attack from Peter-38.

"Will it work?" Kara-X asks them.

"It will with a few more adjustments and a significant power source."

"My husband is on his way to secure it as we speak." She informs him.

"Your husband has a choice to make."

"Me or the Reich?"

"That's right. Because we have 3 goals, and my worry is if we can't accomplish them, he's gonna choose you over a second earth flying under our banner."

"Oliver will not abandon our mission."

"I've seen this before. In 1945, hitler and his men were equally shortsighted."

"Hitler was driven by passion and childish need. Oliver is 10 Times the man he was."

"Not when he's blinded by his love for you."

"If it comes to Oliver choosing between me and the Reich, I'll make sure he chooses the fatherland."

"How?"

"If it comes to it...by taking the choice out of his hands."

-

Back at Star labs, they're still trying to find their hideout.

"Maybe tracking her off of face cream should've been easier." Caitlin states, seeing this is difficult to track.

"Supergirl-X's blood is filled with solar radiation," Harry replies to her, "more than it should be, but if I could reignite to get that to act as a kind of beacon..."

"Hey, how do you do it?" Mick asks Caitlin, regarding Crystal Frost.

"Do what, Rory?" She asks.

"Bring the other you out of you." He explains.

"You don't want to know." Caitlin promises.

"Sure I do." Mick tells her.

It's just...either when I'm scared or angry." Caitlin explains to him and gets back to work.

"So if I were to...BOO!" Mick yells, trying to scare her and it doesn't work on anyone in the room.

"Nice try." Caitlin states and Harry slams his hand against the table.

"Boom. Whatever's going on with Kara-X!s blood, it's intensifying." Harry tells them.

"Worst for her is better for us." Peter replies.

"Better for tracking her at least." Caitlin states. "We should have her location any minute." She says and Mick takes a drink from his beer.

-

Peter-38 was wandering the halls when he comes across Kara leaning against the wall in the speed lab.

"You doing okay, Skirt?" Peter-38 asks her, walking towards her.

"Yeah, it's just...seeing myself like that. What I was afraid of becoming, it just messed with my head." Kara tells him.

Peter-38 goes down and faces her. "You know you're too good hearted to become that, right?"

"I know, it's just...I could have easily been her. If I ran into the wrong family, or I let my anger out like when that red kryptonite controlled me, I could do serious damage." Kara tells him.

Peter-38 watches her hands shake in nervousness and places his hand on hers to stop them from shaking.

"Kara, you are the most kindhearted, amazingly hopeful and positive person I've ever met. And even after everything we've been through, you're still all of those things. I've known you for three years, and I can say as true as the world is round, you will never become her." Peter-38 promises her.

Kara looks up and smiles at her friend and closes her hand around his.

Neither one knows who started to lean in first, but the two of them start to slowly lean in when Peter finds them.

Peter watches and sees what they're about to do and decides to have fun with his doppelgänger.

"We found them." Peter interrupts and the two of them leap up at his voice. "They're at a shipping depot outside Danville." He says and Kara walks out a little fast as Peter-38 starts to follow her when Peter stops his doppelgänger.

"What?" Peter-38 asks his doppelgänger.

"Were you about to do what I think you were gonna do?" Peter asks him with a smile on his face.

"Nothing was happening." Peter-38 tells him and walks off.

Peter just stays there smiles and knows that he's lying considering it's his face that's lying.

-

They make it to the shipping depot from either flying, swinging, or running.

"Supergirl, Iron-Spider, and Firestorm are sweeping the perimeter." Oliver says as they walk towards the hideout.

"It's done. Wall to wall Nazis in there." Peter-38 says as he and Kara return after searching.

"Peter and I will take up break positions on the northwest corner," Sara replies.

"We think thinks they converted the sub light generator into some kind of super weapon." Peter tells them.

"Speaking of super, theirs is our biggest threat." Barry states.

"Then we take her out first." Oliver replies.

-

Back at the labs, Felicity, Caitlin and Frankie are left waiting for anything to happen when Mick holding a sandwich comes in through the doors.

"Mustard." He says like they're supposed to know what he's talking about. "You people have breaches but no mustard."

"What are you even doing here?" Felicity asks him.

"Yeah, why didn't you go with them?" Frankie wonders.

"Go where?" He asks, and they realize they didn't tell him or he wasn't listening.

-

At the hideout, Oliver and Peter-38 sneak their way in.

"Can you turn off your suit? How are you never spotted with all those lights?" Oliver asks, regarding the Iron-Spider suit.

"Sorry, it's built for combat, not stealth." Peter-38 explains as they come to an opening with a dozen Nazis, but before they could begin to fight them, Barry comes in and takes them down.

"Come on, you could've saved one for us to share?" Oliver asks Barry.

"I'm saving Nazi you for you," Barry states as the others come in.

"There's no sign of the prism." Peter-38 says as he scanned the entire place.

"Well, it's got to be here somewhere." Barry says and Peter's senses go off.

"We've got bigger problems." They both warn the rest of them.

"They're right, we've got incoming." Sara says and they turn to see Nazis surrounding them.

"Stay where you are!" They warn them.

"When has that ever worked for you guys?" Peter asks them, a bit curious if that works on their earth.

When the Reverse Flash runs past and Barry races after him and they all begin to fight off all the Nazis as Powergirl comes flying past as Kara and Peter-38 fly after her.

"I see their Flash, their Supergirl." Sara states as she takes two Nazis and Peter webs one before throwing him at a group of them and Sara takes down several more.

"Yeah, I see them!" Oliver says.

"But where's their Arrow?" Peter asks and goes back to fighting.

The whole hideout is filled with shooting, fighting, lightning crackling everywhere.

-

Outside Star labs, Dark Archer is heading for the entrance, undetected.

As inside, Caitlin enters the cortex with the mustard Mick was asking for.

"It was in the fridge." Caitlin informs Mick. "Did you check the fridge?" She questions him as he takes it.

"Ah, thank you, sweetheart." Mick thanks and walks off.

"Any word from the team?" Caitlin asks the girls.

"They're at the shipping depot, but it's just radio silence." Felicity tells her.

In the halls, Harry is walking towards the elevator and runs into Dark Archer. "Oh god." He says, seeing he's in trouble.

"There is no god." Dark Archer informs him as Harry turns to run and he sounds the alarm before he gets knocked out.

-

Back at the facility, the team is working together and separate to fight off the army of Nazis attacking them.

Peter is webbing and dodging everything he can as best as he can.

Barry is still chasing and fighting Thawne,

Firestorm is flying around attacking every Nazi they can find.

Kara and Peter-38 are holding back Powergirl as best as they can, but it's like Powergirl knows their every move they're gonna make.

Oliver and Sara fight more Nazis on the ground when Powergirl comes up and punches Oliver across the room, knocking him out.

-

Caitlin looks at the cameras and spots Dark Archer in the halls.

"Okay, we've got trouble of our own." Caitlin says and sees this is going to be bad.

"You and you, hide." Mick tells Felicity and Frankie.

"What about Caitlin?" Frankie asks, not wanting to loose Caitlin.

"It's gonna get a lot colder in here." Mick says meaning he's going to need Caitlin for Crystal.

-

Oliver-X enters the speed labs and searches for anyone when his senses warn him when a blast of fire comes in and he dodges the shots easily.

"Afraid of a little heat?" Mick asks him when an arrow launches and wraps him up against a post.

"No." Oliver-X states. "I'm afraid of nothing." He says and starts forming a sphere in his right hand, using the Symbiote and walks up to Mick.

"Bet you're pretty angry and scared now." Mick states.

"I told you, I don't fear anything." Oliver-X states.

"Actually..." Caitlin says behind him and he quickly turns to stab her, she stops him and starts freezing his bow. "He was talking about me." Caitlin says as she's in the middle of transforming into Crystal. "Didn't think this trough, did you? Just you against us." She states as dark Archer gets up.

"I don't need to think to kill you." Dark Archer states and uses his second hand to grab her and throws the ice queen up into the glass, but she starts getting back up.

"Anyone else wanna play hero?!" Dark Archer asks when Team Arrow and the ultimate Spider-Man comes out of hiding.

"They wanted to wait. But I don't think we'd ever get better entrance line than that." Miles admits and goes invisible.

-

Peter-38 is firing at the Reverse Flash and can't hit him once when Thawne throws him into the air. Kara comes in and grabs him easily.

"Thanks." Peter-38 says as she drops him.

Peter grabs Powergirl in a web and kicks her in the face as Barry continues to chase after Thawne.

Kara comes in and punches Thawne into a fire and Barry stops and goes back to helping the others take on the Nazis.

-

Dark archer is now just having fun with Team Arrow as they continue to fight, when Dinah uses her Canary Cry on him.

"Think fast!" Miles warns him as Dark Archer hits his chest with his bow, knocking the wind out of him. "He thought too fast."

-

The team finishes off all of the Nazis when Peter's' senses go off and they look to see an old friend.

"What the hell was that?" Sara asks.

"Metallo." Peter-38 and Kara say when the robot sends a kryptonite blast at Kara.

Peter-38 activates his shield to save her but it ends up with both of them being sent flying.

Powergirl And Reverse Flash come back and finish the job at knocking everyone out. Firestorm comes flying in and Metallo separates the two of them. Oliver tries shoot another arrow when Powergirl approach him.

"Hate to do this to that handsome face but..." Kara-X says to him and Metallo kicks him right in the head.

-

Later on, they all wake up and they're tied against a box and they're all wearing meta human cuffs.

"Is everyone all right?" Oliver asks the team.

"We need to work on yourmeaning of your definition of all right." Sara says.

"Yo, Grey. You good?" Jax asks as they're separated across from each other.

"It seems my retirement was somewhat tardy." Stein informs him.

They start hearing slow clapping and they turn to see Thawne above them.

"Oh, great. Here comes the gloating or the explanation of their evil plan." Peter says, knowing Thawne all too well.

"Well, you're right. Here we are. This is fun for me, not so much for you." Thawne says looking at Barry. "All the times you've killed me, and now here all I have to do is kill you once."

"Enough, Eobard." Powergirl call's out to him.

"We know if you wanted to kill us, you wouldn't have put these dumb collars on us first." Peter-38 states, knowing villains are the same from any corner of the multiverse.

"Now I know what it feels like to hate myself." Kara says looking at her Earth-X doppelgänger.

"Well done." Oliver-X says as he returns.

"It wasn't a problem." Kara-X says when she starts dropping and Oliver-X catches her. "The pain, the pain. I don't know how much longer I can bear it."

"It's all right, it's all right. You're gonna be all right because we found her." Oliver-X promises and looks to the heroes. "We found her, and now we have her. Now wet soon, this nightmare will be over. And I'll take you home. So stand."

Kara-X then finds the strength to rise up.

"Star labs is secure." Oliver-X tells them.

"If you hurt-" Peter was gonna say his family when Oliver-X stops him.

"I did hurt your friends. I really enjoyed hurting your friends." Oliver-X says and Peter sees he doesn't know about Frankie so maybe she's okay.

"Are they alive?" Oliver asks his doppelgänger.

"Yes, yes, for now." Oliver-X promises. "We need your Kara's cooperation. Well, we don't need it. It would be preferable. But for the time being, you see more valuable as leverage."

"What do you want with her?" Peter-38 asks them, not liking this.

"To save my life." Powergirl answers. "That's your little mission statement, isn't it? Help people, save lives. Well, now is your chance."

"The General is dying." Thawne explains to them.

"That solar radiation in your blood." Peter-38 realizes. "She's been exposed to too much solar radiation."

"Yes, like Icarus, I flew too close to the sun." Powergirl says.

"But we can save her. We're going to save her. All we need is a new heart. And, luckily, in this planet, we have the perfect doner." Archer states and they look towards Kara.

"That's why you stole the prism?" Barry asks. "So you could duplicate a red sun, weaken Kara, and cut into her?"

"Can't make an omelet with invincible eggs." Powergirl says.

"I'll crack you like an egg if you harm her!" Peter-38 warns her.

"Hey." Oliver calls out his double. "I'm gonna kill you." He states coldly.

"No you won't." Archer tells him. "You're weak and always choose the high road, you're heroes." He says and walks away and Metallo moves back to them and knocks them all out.

-

Back at Star labs, Frankie and Felicity are walking through the labs to see what happened.

"I thought we were gonna die." Frankie tells Felicity.

"If I had a dime for every time I thought that, I...I'd have 2.40. I thought I'd have more than that." Felicity realizes and keeps the girl close. "But don't worry, I will keep you safe. Peter will kill me if I let something happen to you."

"I do have powers, you know." Frankie reminds her when they look and see Nazis. They follow them and watch as they throw miles into the pipeline.

"They turned it into a prison." Frankie says.

"Stalag Star labs." Felicity replies seeing it's the two of them against them all.

But Frankie sees they mostly wear metal, and then remembers when she and Peter once watched a few of the X-Men movies and gets some ideas.

-

The team wake up and look around to see they're in a concentration camp.

They get up to see Kara and is missing.

"Skirt. Where's Kara!?" Peter-38 asks when they get up and see that she's not there.

"It's okay, we're gonna get her back." Sara promises.

"We need to figure out where we are first." Oliver states and they look around.

"Yeah, about that..." Jax starts and they see where they are.

"This is concerning." Stein states.

"I don't think this is our earth." Barry replies.

"We're on Earth-X." Peter realizes and sees they need to find a way out, back to their earth, save Kara before it's too late.

If it isn't already too late.