Flash in Avengers

Disclaimer: I don't own the Flash, Avengers or any other Movies or TV shows appears in this story

While their battle with the Dominators is near success, the Dominators last trick sent the Trinity of Arrowverse into the Marvel Cinematic Universe; it was just the time of Battle of New York. What will happen between the Trinity and the Avengers, will they unite as one? And can they conquer the new threats comes before them?

Earth 1, 2016

The heroes watch the Dominators beamed back to their ship one by one. Oliver looked at the aliens, he whispered: "He did it."

"No, Ollie." Barry said by his side, "We all did it." Just then, they saw a Dominator didn't go back to the ship, and he's walking towards them. Oliver loaded his bow with an arrow, pointed at the Dominator, growled: "Don't move." The Dominator suddenly throws a device towards them, and in a big white flash, Barry, Kara and Oliver disappeared.

Earth 616, 2012, New York

Barry appears out of nowhere, and he falls to the ground. He gets up and whispered: "Where am I." He looked around, found out in shock that he's in New York. "How the hell did I get here?" He thought to himself.

Suddenly, a hideous creature, covered in armor, jumped down from above, and fired at him with some sort of lasers guns. Barry dodged it barely; he sped forward and knocked that thing down with super speed.

"What happened here?" He mumbles. He looked up in the sky, his eyes filled with horror when he found out a giant alien spaceship is floating in the air, and a giant wormhole is in the air. "Oh come on." He thought, "Another alien invasion?"

Barry decided he needs to scout the area, and helping civilians. So he sped away, didn't realize that two of his friends is also missing.

Asgard, 2013

Kara appears in the sky, she falls to the ground. She stands up, trying to know of what is happening she looked around, realized she's surrounded by buildings that definitely not Earth's. "Well, looks like we're not in Kansas anymore." She said to herself.

She suddenly find out two battleships is attacking a place, she decides she need to stop it, she flies towards them, didn't know that her two friend is also traveled to this special Universe.

Asgard, 2017

Oliver falls to the ground, he stands up, found out he was surround by one glorious but now was destructed building. "Where the hell am I?" He mumbles. Then he suddenly found out a large group of civilians is trying to get on a ship, some soldiers is trying to stop them, some people and fighting with those soldiers.

Oliver decides he need to help those man, he runs towards those soldiers, unaware that Kara and Barry is also arrived this Universe.

Earth 1, New York

Barry runs around the city, saved several civilians from those aliens. Suddenly, a giant blast sends him flying in the air, and he falls to the ground. He saw an man carrying a shield, wearing a blue jumpsuit with some red and white stripes on it and has a white star in his chest is running towards him.

"Hey, you okay, kid?" The man asked. "Yeah, I'm fine." Barry answered. "Let's get you out of here." The man said, helped Barry to get up, but several aliens jumped before them, before the man could do anything, Barry used super speed knocked them all down.

"How, how did you do that?" The man asked in shock. "I'm the Flash." Barry answered. "The what?" The man asked in confuse. "Wait." Barry said, "You don't know who I am?"

"No." The man said. "Do you know Green Arrow?" Barry asked. "No." The man said. "Supergirl? Atom? Black Canary?" Barry asked. "No, I don't know any of them." The man said. "Oh, crap, not again." Barry said, realized he's in another universe. "Not again what?" The man said.

Steve Rogers is straight up confused right now, a boy in red tights could run at super speed, and he said a bunch of names he's not even heard of.

"Okay." Barry said, "It's complicated, you just have to know that I'm here to help." Steve said: "Okay, by the way, what's your name?"

"Barry Allen." Barry said. "Steve Rogers." Steve said. Suddenly, several lasers nearly hit them. "Okay." Barry said, "I'll explain to you when this is all over." Steve nodded his head. Then Barry sped away. Steve looked at Barry's back then sighed: "Fury right, the world is whole damn weirder than before."

Barry punched several aliens on the way, but they just keep coming, more and more. He stared at the wormhole in the air, "Got to find a way to close it." Suddenly, he found out something is coming towards this city. "Is that a missile?" Barry mumbles in shock.

But something flies towards the missile and able to control it, the missile went directly flying into the wormhole, and entered it. Then the wormhole closed, but something dropped before it can closed. Barry run towards the location where it dropped.

Barry arrived at the location, find out a man in some sort of armor is lying on the ground, Steve with another blonde man and another green giant is surrounding him, looking sad. Barry realizes it must be one of their friend lying there. He didn't know the man, but he still feels sad that a good man is dead.

But the men suddenly gasped and wakes up, he said: "Please tell me nobody kissed me." Everyone begin laughing, "He's okay." Steve said. "All right, yay." The man said, "Hurray. Good job, guys." Suddenly, he saw Barry, asked: "Who's that."

"Barry Allen, this is Tony Stark." Steve said. Barry smiled, said: "Hello." Steve said: "Barry helped a lot today, he's a friend."

"May I have your name?" Barry asked another man with golden long hair, "Thor Odinson." He replied. "Thor?" Barry asked, "As in Norse God of Thunder?" Thor nodded his head proudly. "This is the Hulk." Steve said, pointing at the green giant. "Hello." Barry said.

"Alright." Tony said, "Does anyone want something to eat?"

Author's Note: Well, this is it, though it's a little short, it just feels like a good stopping point, I loved Raptor2216 and Stand Ward with Queen's fanfiction. So I made this, it may not be good, and I'm welcome to suggestions and ideas. Okay bye.