The Flash/Arrow/Supergirl/Legends of Tomorrow/Crossover – Crisis on Two Earth

Chapter 1 – Betrayal

Barry's narration: My name is Barry Allen and I'm the fastest man alive. To the outside world, I'm an ordinary forensic scientist but secretly with the help of my friends in S.T.A.R Labs and I fight the metahuman like me. I am the Flash.

Oliver's narration: My name is Oliver Queen. After 5 years in hell, I return with one goal and one goal only to save my city but I fought battle 2 fronts. In daylight, I run Star City as a Mayor but at night I was something else and someone else. I am the Green Arrow.

Kara's narration: When I was child, my planet Krypton was dying and I was sent to Earth to protect my cousin but pod got knock off course and by the time I arrive my cousin has already grown up. I am Supergirl.

Earth 1

6 months have passed since the defeat of Savitar the God of Speed and Barry's release from the Speed Force prison, Barry and the team is now resting since there hasn't been any metahuman activity lately and Barry is still recovering from what happen in the Speed Force.

"Hey Barry, nice to see you back and well" says Iris West. "Yeah, Wally and Jesse is now having their first date" says Barry Allen/The Flash. "Yeah, Harry is giving Wally a death threat" says Julian Albert. "Really, when?" Barry Allen/The Flash asked. "Just yesterday, but don't worry I'm sure Jesse will ignore it" says Iris West.

"Hey Bar, it seems that Captain Singh want to see you" says Joe West. "Okay, I'll be right back guys" says Barry Allen/The Flash.

Barry went to see Captain Singh, it seems that Captain Singh already knew that Barry was the Flash all these years.

"Captain, do you want to see me?" Barry Allen/The Flash asked. "Yes, I do, 6 months spending in the Speed Force and it must have been hard for you as Barry Allen and the Flash" says Captain Singh. "Wait, you knew I was the Flash?" Barry Allen/The Flash asked. "I have my suspicious all these years, but I couldn't confront you and I'm afraid you would quit" says Captain Singh.

"Captain, I've just spend 6 months in a prison design for speedster for my crime of creating Flashpoint and I'm now a different person so I will stay here as long as you want me to Captain" says Barry Allen/The Flash. "That's good to know Allen, you may return to your lab" says Captain Singh.

Barry Allen told his Captain that he will stay at CCPD as a CSI as long as the Captain wanted, but most important of all and no government is out to get him for experiment. It's been a year since Earth 1 survive their first alien invasion, Barry knew that in the darkest time and the darkest hour could reunite both Vigilante and Superhero together including Supergirl.

"Hey Bar, how did it go with Captain Singh?" Joe West asked. "I was surprise that he knew I was the Flash, I told him that I will stay at CCPD as long as he needed" says Barry Allen/The Flash. "So, are you up for Lunch with the team?" Julian Albert asked. "Big Belly Burgers, I assume" says Barry Allen/The Flash. "You just read our minds" says Joe West.

It is 12:30 noon and it is probably lunch hour, there hasn't been any Metahuman or Alien activity and the Multiverse is quiet for the moment.

Earth 38

Meanwhile in Earth 38, Supergirl is now can rest easy when she was reunited with Mon-El but little does Kara knows that today will change her life for good.

"Morning, hotshot" says Kara Danvers/Kara Zor-El/Supergirl. "Morning to you, it looks I beat you today" says Mon-El/Valor. "Not by a long shot" says Kara Danvers/Kara Zor-El/Supergirl. "Come on, you're sister Alex called and she says a family picnic at the park is the best thing to celebrate plus she needs to know about your interdimensional extrapolator" says Mon-El/Valor.

Kara immediately went to take a shower, Kara knew she needs to explain it to her family one way or another.

Kara and Mon-El got dressed to head for the park possibly for a family picnic, it's been month since Mon-El left and now Mon-El reunited with Kara.

Kara and Mon-El got to the park, everyone was there except for Kara's cousin and his wife who are still in Metropolis.

"So, you perhaps want to tell us why did you disappear after last year thanksgiving?" Alex Danvers asked. "Alex, let the lovebirds sit down then explained" says Maggie Sawyer.

Kara and Mon-El sit down, Kara start the explanation by showing her parents the interdimensional extrapolator that her friend Cisco give her.

"This is the interdimensional extrapolator, my friend Cisco who is actually just like Winn here made it for him. It can create small breaches to allow to cross into the universe where the Flash lives, I visited his world twice and I owe the Flash more than anything meaning if I ever need any help then the Flash will be there for me" Kara Danvers/Kara Zor-El/Supergirl explained. "I believe the Flash is already married" says Kara Danvers/Kara Zor-El/Supergirl.

"Thank god" Alex Danvers whispered. "What? I proud of it and I'm not going to lie" says Alex Danvers. "Look, the Flash is from Earth 1 and we're Earth 38. If I ever need anything and I will go to the Flash for help, I fought with him side by side with a team full of superheroes, vigilante and also one criminal" Kara Danvers/Kara Zor-El/Supergirl explained.

"Wait a minute, he brought a criminal into the fight?" Maggie Sawyer asked. "Yes, but it's okay and that criminal is in good behavior" says Kara Danvers/Kara Zor-El/Supergirl. "Well, I wouldn't mind meeting this Cisco guy and I know that this Cisco could have some similarity with me" says Winn Schott Jr.

"Nerd!" Maggie and Alex shouted. "Not funny" says Winn Schott Jr. "Look, I have earned the Flash's trust and he earn my trust meaning it can never be broken" says Kara Danvers/Kara Zor-El/Supergirl. "I agree, but I believe that they're world is place for any heroes even for Kara" says J'onn J'onzz/Martian Manhunter.

"Well, I'm anxious to meet the Flash" says Alex Danvers. "Me too" says Maggie Sawyer. "Guys, Lane just called and he needs our team to investigate a possible alien activity in New York City" says J'onn J'onzz/Martian Manhunter.

"Alright, let's suit up" says Kara Danvers/Kara Zor-El/Supergirl. "I'm coming too, someone has to be the one to look out for you Danvers" says Maggie Sawyer.

On the next day, the team arrive at Washington D.C and the team is now being assembled to investigate but little do they know that the mission will turn into betrayal.

"Well gang, it seems the alien disturbance is coming from that warehouse" says Winn Schott Jr. "Okay, Kara and I can enter from the rooftop" says Mon-El. "J'onn and I can break through the West Wall" says Clark Kent/Kal-El/Superman. "The rest of you take the main entrance" says J'onn J'onzz/Martian Manhunter.

Therefore, the team immediately storm the warehouse without any trouble and entering the warehouse was easy but the team will be getting a surprise soon.

Supergirl and her team along with her cousin clean the warehouse perfectly, the alien gang run for their lives leaving only the packages behind and the team took the package then head back to the Pentagon.

However, the team is about to get nasty surprise once they enter the Pentagon and it will be Supergirl's betrayal.

"Amazing teamwork, I couldn't have done it myself but you did" says Samuel Lane. "You never be this happy" says Clark Kent/Kal-El/Superman. "He's not boy scout" says Lex Luthor as he comes out of the shadow.

"Lex, how did you get out of prison?" Clark Kent/Kal-El/Superman asked. "A few loop holes, but now you just done my work for me and I need that package" says Lex Luthor. "So, everything was a lie?" Kara Danvers/Kara Zor-El/Supergirl asked. "The time of the alien is over, the Daxamite Invasion is the last straw and I can spare you but you have submitted to the new ruler" says Samuel Lane.

However, Superman refuses and toss HUMVEE at one of the Cadmus goons allowing the team to flee for their lives.

The team try to get out of there as soon as they can, the team retreated to the abandon trainyard after getting their stuff out of the Pentagon.

"Guys, I think we're going to be back in National City and Lane just put an APB on all of us" says Winn Schott Jr. "Just great, we need to get most of our stuff at Kara's Apartment to leave for Fortress of Solitude" says James Olsen/Guardian. "Correct, but Lex knows that already and he won't let us through" says Clark Kent/Kal-El/Superman.

"I know, but let's get our stuff then we'll figure out where we should go" says Kara Danvers/Kara Zor-El/Supergirl. "Fine, I can't argue with that" says Alex Danvers.

Lex Luthor is now the President of the United States, the team knew this day is coming but it is a complete surprise.

Just 24 hours after the incident in D.C, the team return back to Kara's Apartment and to get some stuff including Kara's solar lamp.

"Thank god, our stuff is still intact" says Alex Danvers. "Not for long, we need to get out of here and find some place to take refuge until the situation dies down" says Maggie Sawyer.

As the team is now finishing packing, they were somehow being watched by a sniper that was aiming down on Superman and Kara somehow heard it also hearing the bullet coming towards Clark.

Kara immediately shield Clark from the bullet since she knows it is Kryptonite, everyone was shocked including Clark that Kara is now lying on the ground and bleeding.

"Kara!" Clark Kent/Kal-El/Superman shouted. "Don't chase him, Kara needs us and we need her" says Alex Danvers. "You leave her and you won't help her" says J'onn J'onzz/Martian Manhunter. "What do you want me to do?" Clark Kent/Kal-El/Superman asked. "All of us go and get help, we haven't run out of friends just yet" says James Olsen/Guardian.

"Okay, how do we even know that the people from other earth's that Kara met can be trusted?" Clark Kent/Kal-El/Superman asked. "She trusted them, we should do the same and now let's go" says J'onn J'onzz/Martian Manhunter.

Therefore, the team use the interdimensional extrapolator to head for Earth 1 to seek help and also get Kara some medical attention.

Earth 1

Back on Earth 1, some of team Flash is now at the cortex and Barry is now hanging out with Iris at the Speed Lab.

"You know I was thinking of inviting Kara and her family to our wedding" says Barry Allen/The Flash. "Me too honey, I always wanted to meet Kara's family" says Iris West-Allen. "You know what it would be better, two wedding at the same place and time" says Barry Allen/The Flash. "At this rate Barry, we could call it a superhero wedding" says Iris West-Allen.

Suddenly, a breach appear out of nowhere and out comes team Supergirl along with her family but then Barry saw Kara on stretcher bleeding.

"Kara…what happen to her?" Barry Allen/The Flash asked. "You must be the Flash, please save my cousin and we have everything you need for a surgery" says Clark Kent/Kal-El/Superman.

TBC

The next chapter, A.R.G.U.S Lyla Michaels arrives at S.T.A.R Labs to announce the creation of the new Justice League of America alliance.

Stay tuned.