A portal opened in STAR labs with Barry, Cisco, and Kara stepping out. "Guys, thanks for coming," Barry said to Team Arrow and Team Legends.
"Barry, I thought you were bringing an alien," Oliver said annoyed and completely oblivious.
"Yeah, we did. This is my friend, Kara Danvers, or as she is known on her Earth, Supergirl," Barry introduced.
"What makes her so super?" Jax asked skeptically.
Kara smirked and then flew several feet in the air and then used her heat vision to create the House of El symbol on the floor. "I'm convinced," John said impressed.
"Yeah, but why was it necessary to damage the floor? Who's going to pay for that? Who's going to repair it? I mean, what the fuck?" Oliver raged.
"Be lucky I'm here at all. I am more powerful than all of you combined even in my normal form," Kara said as she used her X-ray vision on all of them.
"Yay! Girl power!" Felicity said excitedly.
"Yeah, I don't follow that feminist bullshit," Kara corrected her. "So, I'm here for one reason and one reason only: to kick ass. Show me the way."
"First, we need to introduce everyone to you," Barry said.
"That's not really necessary," Kara said dismissively.
"But it is," Barry insisted and then named everyone.
Kara rolled her eyes not paying attention despite her superior memory. "Okay, I think I have this. Ah, wait, I don't give a shit," Kara said.
"It's Green Arrow," Oliver said becoming impatient with her.
"Spartan," John said without being asked.
"Speedy," Thea said.
"You'll have to forgive me if I call you by your real names: Oliver, John, and Thea," Kara smirked.
"You know our names?" Oliver realized.
"All of you exist in one form or another on my Earth," Kara told him.
"Well, I've never seen you on my Earth," Oliver said skeptically.
"Your loss," Kara shrugged. She then went over to Team Legend. "Sara," she identified.
"White Canary," Sara corrected.
"White is tight," Kara gave her a thumbs up. Kara then looked over the group and gave Ray Palmer an odd look as if he looked super familiar to her but couldn't place it.
"So, let's get started," Oliver said impatiently.
"Yes, let us proceed," Kara gestured to Barry.
"Okay, so, these are the Dominators. We don't know much about them," Barry admitted showing a grainy image of one on the screen.
"The Dominators? They're really strong...for you, people. They would attack our colony worlds and do all sorts of weird-ass experiments on the colonists," Kara said.
"Well, Barry says your more powerful than a locomotive," Thea brought up.
"He gives me far too little credit," Kara said arrogantly.
"We should use Kara as a stand-in for training," Oliver suggested.
"Why are you calling the shots?" Mick asked argumentatively.
"What I think Mick was trying to say is who's calling the shots around here?" Jax asked diplomatically.
"We should take a vote, to see who is the leader," Ray said lamely.
"Well, I trust Oliver," Cisco said immediately.
"Thanks, buddy," Barry rolled his eyes.
"I appreciate your total betrayal of your friend and colleague, Cisco, but Barry put us together. It should be him," Oliver nominated.
"Well, I guess as team leader the first thing we should is...ah," Barry said flustered.
"No one going to take a vote? Just...fuck it?" Kara wondered.
"Test run," Oliver said helpfully to Barry.
"Yeah, test run. Let's do a test run...," Barry said awkwardly.
"Against Supergirl," Oliver said softly.
"Yeah, against Supergirl, alright, test run against Supergirl," Barry said lacking confidence in himself.
"Is this real? Is this really happening, right now?" Kara scoffed.
"So, let's suit up, look alive, we're going to train to fight aliens by fighting an alien. So...like...go do that," Barry said lamely.
As everyone departed, Kara came up to Barry. "I am so embarrassed...for you," Kara said to him.
"Hey, Kara, I am so excited to have you meet Oliver. He was the first one to train me," Barry said as Oliver walked up to them.
"Really, so which one is top and which one is the bottom?" Kara wondered.
"Barry didn't hold back but I still shot him in the ass. You can't hold back, either," Oliver said super serious.
"He did manage to penetrate my suit," Barry admitted.
"You know, I was merely joking but...damn," Kara realized.
"These people need to understand this won't be easy. Don't hold back, especially against me," Oliver told her.
"Yes, Sir," Kara said with a mock salute.
Oliver then sulked off. "Does he not like me? Is it because I'm a girl?" Kara wondered.
"He's like that with everyone," Barry defended him.
"Ah, an equal opportunity asshole. I can get on board with that," Kara smiled.
"Well, I certainly did," Barry smiled and walked off leaving Kara confused.
While Barry explained to Dr. Stein, Jax, and Oliver how he completely fucked up the timeline, Kara engaged the rest of Team Flash, Arrow, and Legends all at once beating them all easily. None of their attacks had any effect on her.
"She really is a bad-ass," Thea remarked as she was knocked on her ass.
"It's kind of hot, actually," Sara said making sure to remind everyone that she was Bi...again.
"Let's go again," Oliver ordered.
The three teams converged on Kara only to get another quick beatdown within a few seconds. Energy blasts, fire blasts, and bullets had no effect on her. She then landed on the floor so John could get a few good gunshots on her and then she punched everyone to the floor within a second.
"Are you sure you want me to keep going? I mean...I'm happy to oblige in your ass-kicking but fuck," Kara said amused
"Yes, just give us five minutes," Oliver said tensing up in pain.
Cisco then confronted Barry over his fuck-up. Their argument spilled over to the others. "Tell us what?" Sara demanded, overhearing some of their conversation.
"It's nothing," Barry lied.
"Our fearless leader decided telling you the truth about his time-traveling shenanigans could wait until after this mission is over. Dr. Stein found a message from Barry in the future that he couldn't be trusted in the present because he went back in time and now everything on this Earth is different," Kara revealed.
"Like, how about these apples: Cisco's brother is dead, Caitlin has ice powers that will ruin her sex life forever, Wally can run fast, too, and John's daughter got a sex change," Kara continued.
"How...do you know all this?" Barry asked flustered.
"I got super-hearing. I know...it is a bitch," Kara grinned.
"Wait...you erased my daughter from my life?" John asked offended.
"Yeah," Barry said awkwardly.
"Wait, you just can't go back in time and change things," Sara told Barry off.
"Well...I did," Barry said obviously.
"If you could, I would bring my sister back, but I don't because I know the implications," Sara reminded him.
"You just decided to create your own timeline?" Ray said dismayed.
"You should have told us before," Jax piled on.
"Yeah, before that vote we never had," Kara mocked.
"The Dominators kidnapped the president," Felicity brought up suddenly.
"Who's the president on your Earth?" Kara asked curiously.
"Mitt Romney...of course," Felicity gave her an odd look.
Kara started laughing at that earning odd looks from everyone. "Are you guys really sure you want to save him?" Kara asked still chuckling.
"I'm going to sit this one out. It's obvious I've lost your trust and Supergirl is just as fast as I am. Get the president. We can talk later," Barry said filled with self-pity.
"Finally, some respect," Kara agreed.
As everyone departed, Barry came up to Kara. "I know your intentions were in the right place. You wanted them all to know the truth but you probably eliminated the second most powerful person on the team."
"Distant second," Kara clarified.
"None-the-less," Barry shook his head frustrated.
"If I hadn't done it, Cisco would have. I have to preserve your friendship," Kara said.
"Don't tell him this...but I hate him so much," Barry frowned.
"It's best if you tell him, yourself," Kara said giving him a pat on the shoulder. "So, how did Romney become president?" Kara asked still dumbfounded.
"I guess the country wasn't ready for a female president winning a second term. Hillary lost hard in 2012," Barry frowned.
"Wait, what about Barack Obama?" Kara asked confused.
"Who?" Barry wondered.
Kara simply stared at him with a stupified expression on her face. "If you need me, I'll be here," Barry told her.
"We won't," Kara assured him.
"Hey, guys, this is crazy. Everyone is going including Barry. I'm not going without him," Oliver said to the others.
"Then, you'll be here, Oliver," John said still pissed-off.
"I would have thought you would be happy to have a male heir," Kara said incredulously.
"I'd rather have Barry at my side at all times. I mean, what's to stop him from fucking up the timeline while he's here, alone?" Oliver pointed out the obvious.
"Thanks, Oliver," Barry shook his head dismayed.
"Okay, I'll go with the rest. You can keep an eye on Barry," Kara suggested.
The team composed of Jax, Mick, Sara, Ray, Thea, and John walked up to an abandoned compound. Kara then flew over them and landed behind them. "So, this is the last place where the president's tracer signal was. And...he's actually here. Well, I'll be damned," Kara said using her X-ray vision.
"How do you know that?" Mick asked.
"My power is that I have lots of powers," Kara smirked.
"Oh, you can see everyone's bits with those eyes," Mick said amused.
"You have the biggest penis in this group by far," Kara informed him.
"Tell me something I don't know," Mick said unimpressed.
"On my Earth, you are a woman named Rebecca Silver. So, you can thank Barry for changing the timeline," Kara revealed.
"You're fucking with me, aren't you?" Mick asked horrified.
"Ignore him," Sarah interjected.
"How did you get your name, Heatwave?" Kara asked curiously.
"I burned my family alive and I like to light things on fire," Mick said nonchalantly.
"I also like to kill my family members and light things on fire," Kara agreed.
"Glad to know there's someone out there that gets me," Mick said pleased. "By the way, I'm not calling you Supergirl. That's stupid."
"I know it's stupid. It's to mock my enemies when I kill their ass," Kara said obviously.
"That won't work. How about skirt?" he said.
"Seriously?" Thea shook her head dismayed.
"Seriously, I'm not going to need your help," Mick said seriously.
"You call me skirt and you'll need all their help to keep me from killing you," Kara threatened.
"Fair enough," Mick said and walked forward towards the compound.
The group went inside the compound and found President Romney with ropes around his hands. "Get me out of here," he said distressed.
"I don't know, are we the one of the 47 percent?" Kara mocked.
"That quote must have made you real mad. Did it remind you how many decent parents you had?" Romney shot back.
"Damn," Kara said wiping away a tear.
"This doesn't seem right," Jax sensed.
"Well...no shit," Kara agreed.
"Wait...is that a dead Dominator?" Sara pointed out the alien bent over on a railing on the second floor without his head.
Kara untied Romney. "Did you really think you got here first before me? I killed the Dominator leader way before you guys got here."
"The fuck?" Sara wondered.
"Hey, what is that?" Ray pointed out.
Kara eyed a device on the second floor that was glowing red. "That is a...hmmm," Kara couldn't recall.
"It's a trap!" Jax shouted.
The device then activated on a timer zapping everyone in the building with mind control. "Well... shit," Kara realized.
Flash and Green Arrow exited STAR laboratories to find Jax, Mick, Sara, Ray, Thea, and John under mind control. Kara flew in as well. "Look, I'm sorry. Can we just talk about this?" Barry asked.
Thea shot an arrow at him. "Guess not," Oliver said as Barry caught the arrow and threw it down.
Sara threw ninja stars, Mick blasted them with his fire thrower, Ray fired energy pulses, and John fired his pistol at them. Barry sped Oliver away to cover behind a van. "What's wrong with them?" Barry wondered.
"How the fuck should I know?" Oliver asked him.
A heat vision beam blasted Barry and Oliver to the ground destroying the van they were using as cover. Barry then sped Oliver to a wall to get cover. "Okay, you really did it this time," Oliver scolded Barry.
"Seriously? I thought we were bros?" Barry said hurt.
"We are bros, man, but you fucked up, Barry," Oliver said to him.
A heat vision beam nearly hit them both. "What the fuck is that?" Oliver asked.
"That would be heat vision, you know, the thing she's been using all day to kick our asses in the training sessions you designed," Barry reminded him.
Oliver and Barry confronted the group leaving their cover position. Barry sped forward punching Mick to the ground and taking off to the roof of the arena leaving Oliver alone. Kara, Jax, and Ray pursued him to the roof. Barry sped around in a circle quickly giving off an electrical discharge that stunned Jax and Ray but had no effect on Kara. Barry was then blasted off the roof with Kara's heat vision. On the ground, Oliver was a total bad-ass taking on John, Sara, and Thea all at once with his superior martial arts.
Wally then arrived hitting John, Sara, and Thea at fast speed. "Wally?" Barry wondered.
"Kid Flash," Wally smiled.
Kara smacked Wally hard against a wall knocking him out. Barry and Oliver were quickly at his side. "How many more of those arrows you got?" Barry asked.
"Against her? Are you fucking high?" Oliver asked him.
"Take him to the bunker and hold them off. I'm going to get Supergirl out of here," Barry said.
"Barry, you'll die," Oliver said super serious.
"Not if I can find a way to shut off the mind control," Barry said thoughtfully. "Hey, Supergirl, let's finally see who's faster," he challenged her.
Kara gave chase nearly hitting Barry twice with her heat vision. Barry finally arrived at the compound and found the mind control device. The two sped around the compound as Kara tried to get to him. "Too slow," Barry chided.
Barry then stopped right in front of the mind control device. Kara dropped down not too far from him. "Impressive, Barry. I haven't had anyone match my speed since...you," Kara said amused.
"I know you're still in there, Kara. The mind control must not be fully in control of you if you can make witty remarks," Barry said to her.
"You intend for me to chase you smacking right into the device destroying it? Did you think that would really work?" Kara mocked.
"For a moment there, yeah, I did," Barry said dryly.
Kara moved faster than he could react and grabbed his arm. Barry tried to vibrate out of her grip in vain. Kara forced him to his knees. Kara then used her other hand to backhand the mind control device destroying it. The rest of the group was free of the mind control giving Oliver relief.
"Wait...what?" Barry wondered.
"You fucked up the timeline, Barry, but morality is about intentions...or was it consequences. I always get them mixed up. In any case, I might have done the same thing to save someone very important to me. For that person, I would create infinite time paradoxes. I would do anything," Kara said seriously.
"You weren't under mind control this whole time?" Barry asked incredulously.
"No shit," Kara said releasing him. "But you're not going to tell anyone that just like you shouldn't have let your bitch friend, Cisco, know what you did. You saved the day, Barry, and that's what everyone is going to think. This is your redemption arc, Barry."
"But what about Wally?" Barry protested.
"He wanted to be the hero he was meant to be but you fucks kept him from doing so. I finally allowed him some action while making sure Oliver looked really cool," Kara smiled.
"You're insane," Barry realized.
"No, I'm just ahead of the curve. You can choose to make reality bend to your will or you can choose to be like Sara accepting one and only one reality that her sister remains dead. When I heard that nonsense, I knew what side I had to be on. I had to be on yours because there is no reality where I would ever accept my own sister's death," Kara told him.
"Guys, they're back," Oliver radioed.
"This is your Earth. It's up to you," Kara said to Barry.
The group gathered outside STAR labs in the rain. "Is this really necessary...to do this...in the rain?" Mick complained.
"Quit your bitching. I got you covered," Felicity said as she had him under an umbrella.
"I didn't know you had a mind to be controlled," Jax joked.
"Ha! Fuck you," Mick told him off.
"Barry, about before, we're with you. Without you, the world would have been doomed," Ray said appreciatively and obliviously.
"What do we do now?" John asked.
"We call Lyla and tell her what the Dominators can do. If they can mind control Supergirl, no one is safe," Oliver said super serious.
Barry sighed as he kept his mouth shut. Sara suddenly got beamed away. "Sara!" he yelled.
"Everyone inside," Oliver said super-serious.
However, it was too late as everyone except Barry was beamed away. Kara then landed next to Barry. "Where the fuck did everyone go?" she asked looking around.
Author's Notes: In these crossovers, I cut scenes that don't involve Kara. Whenever Kara is enlisted to assist in a crossover, there is always a cost.