Arrowverse-Avengers Crossover Fan-fiction - Over in a Flash

Plot: What if Barry Allen's adventure with the tachyeon Prototype left him stranded in another world. In the Marvel Cinematic Universe's Sokovia just at the climax of Age of Ultron. But what effect will Barry have on this world and a certain Scarlet Witch and will Barry be able to return home?

Crossover: Arrowverse, Avengers

Pairing: Barry x Wanda

Over in a Flash

Chapter 1: VS Zoom

Well this is my first fanfiction so don't expect much. Credit to BlueShadow4 for the name, Hope you all enjoy!

It had been a weird week for Barry Allen. A weird week indeed and that was an understatement considering the amount of weirdness Barry had been through. He had gone face to face with a telepathic gorilla, travelled back in time but yet somehow dimension jumping had managed to top it all.

It all began last Friday where Barry had travelled back in time to the day of Hartley's attacks. He had hoped to gain the knowledge from the Reverse Flash himself Eobard Thawne on how to increase his speed. Although there had been a few complications Barry had been successful in doing so and returned to 2016 with the formula for a tachyon prototype. This in theory would double his speed allowing Barry to run at a speed faster than Zoom, meaning he could finally stop Jay.

Jay? Hunter Zoloman? Zoom? Barry didn't know how to refer to him other than a betrayal… Another betrayal. Barry was always getting betrayed, first Dr Wells turned out to be the Reverse Flash, then the Earth-2 Wells (Harry as they'd been dubbing him recently) betray him to Zoom, finally there was Jay Garrick. The Flash of Earth-2; oh how wrong they had been. Jay was no hero but rather the very villain that had caused Barry so much discontent and misery these past few months but now with the help of the tachyon prototype Barry would finally be able to stop him and liberate Earth-2 or so he had thought.

It had taken Cisco and Harry a few days to construct the tachyon prototype but they had finished in the space of a few days, Barry decided against questioning them as to how they made it expecting a witty remark from the ever joyful Cisco and a "We don't have time for this, Allen." From Harry.

"Alright Barry I've attached the prototype to your suit, Feel free to take it for a spin now." Said Cisco in between slurps from his slushy. (Barry never did understand where or when he got those but he always seemed to have one.) Almost as soon as Cisco had said that Barry was gone appearing again clothed head to toe in his shiny red aerodynamic Flash suit. "Alright guys I'm off!" Exclaimed Barry equally as excited by the prospect of new speed as Cisco was.

Within a second Barry was gone out of the sight of Cisco, Wells and Caitlyn. He imagined they'd all quickly slide and run over to the communications centre as Barry had disappeared and he was correct, hearing Cisco's voice in his left ear through the suit's built in communication systems.

"Barry how are you feeling? Your speed is ridiculous!" said the ecstatic voice of Cisco.

"I'm alright Cisco, I don't even think this is my top speed yet." Said Barry whilst picking up in speed, he had never felt so fast in all his life for the first time in the past two years he truly felt as though he was finally the fastest man alive.

Barry continued building in speed, having passed what would normally be his limit with ease, suddenly as if out of nowhere a large blue portal opened up in front of him. Barry tried to slow down to a stop but he was going too fast for him to be able to do so. "Ahh- Cra…" The portal engulfed Barry before he could finish speaking closing swiftly behind him. "..p" Barry looked around having seamlessly ended up in what appeared to be Eastern Europe surrounded by an army of robots. Whatever that portal did, Barry was certain he was no longer in Central City "Toto, I've a feeling we're not in Kansas anymore." Said Barry before running off to try and find someone other than these robots.