Disclaimer: I do not own Ben 10 or Young Justice but i own this awesome plot! (I think...)

AN: This book was inspired by Sandman7734 and that's why Ben is crying in the beginning. Don't worry, there won't be anymore of Ben crying. Also, only one or two omniverse aliens will be in here. Oh and Ben doesn't have a timer. The Ultimatrix only times out when Ben wants it too or when he's unconscious. But Ben still needs to touch the Ultimatrix symbol to transform.

Chapter 2: Alternate Reality

Ben watched as the masked boy touched something in his ear and starting talking. Then the boy, Robin, he thought, walked over to his comrades to help them up.

All the while, Ben was waiting for the right moment to execute his plan. He had already been in this predicament once before. All Ben had to do was to heat up the temperature in his body, melt the ice, re-attach his arms, and get the hell out of there.

Right when Ben was about to start melting the ice, a bright light appeared inside the tubes at the other end of the cave and people starting walking out of them.

Teleportation device Ben thought in his head.

Now was the to get out, while everyone was distracted. Ben increased his body temperature fast enough to turn the ice directly to steam.

The guy dressed in black with a cowl reacted faster than Ben thought and threw a boomerang at Ben.

Ben rolled out of the way and re-attached his arms. He then threw down some smoke bombs and turned toward the wall.

He then let loose a huge wave of intense fire that burned a hole through solid rock. As Ben climbed through the hole a golden lasso caught him around the waist and prevented him from moving any farther.

"Going somewhere?" a female voice said. Ben turned around and saw one of the most beautiful women he had ever seen-besides Julie, of course.

"Yeah, I was just leaving." Ben replied.

"Well you're not going anywhere until we have answers." The man the cowl and black clothing said.

"Well that sucks for you because I'm just gonna leave and there's nothing you can do to stop me." Ben said and then pulled the lasso off him.

"I don't think so" The guy in blue tights with a S symbol on his chest said.

Ben turned and said, "And how are you going to stop me?"

"By doing this" the man replied and red lasers came out of his eyes and hit Ben in the chest, knocking him back onto the beach outside.

Ben groaned and got up only to see that he was surrounded by the man with the cowl, the "S" guy, the woman with the lasso, another guy with a lightning bolt on his chest, a green guy who looked like a Martian, another guy dressed in green who had a weird symbol on his chest, and a guy who had scales on his chest.

"Surrender now, and we won't hurt you. This is your only warning." The guy in black who had a bat symbol on his chest said.

"I don't think so" Ben growled and touched the Ultimatrix symbol on his chest.

"HUMUNGOUSAUR!" Ben yelled in a deep voice after his transformation.

"What in the world?" The guy clad in red with the lightning bolt said in surprise. The rest of the people present seemed to have similar reactions.

Ben smiled and started to grow to full size. The heroes were still too shocked to do anything until it was too late.

Humungousaur slammed his fist into the ground causing a mini earthquake and knocking everyone to the ground. Then as everyone started to get up, Ben hit the Ultimatrix again and seemed to vanish into thin air.

"Where did he just go?" Flash asked but nobody had an answer to give.

-Somewhere in Happy Harbor-

Ben had found an empty street in the town that was apparently called "Happy Harbor" and changed back from Nanomech to regular Ben. He had used this alien to escape the costumed people because he wasn't sure that he could take them all on. Now he stood on the deserted street, wondering where the heck he was.

He had never heard of a town named Happy Harbor, and he had a sneaking suspicion that this was not his Earth, but some alternate reality. To confirm this, he held up his left wrist and played around on the Ultimatrix, until he activated the communications function.

"Ummm hello? Gwen? Kevin? Grandpa Max? Anybody there?" Ben said into the device while walking down the street.

Suddenly there was a reply, but not one Ben was expecting.

"Hello? Which Green Lantern is talking rubbish on a secure line? Please state your name and sector." an alien voice said.

Ben blinked I'm surprise. This confirmed his suspicions-the famous Ben 10 was in another universe, without a way to get home.

"Hello? Please respond, Green Lantern, or else I will have to report this misuse of the secure Green Lantern communications line." The alien said again.

Ben just sighed and shut off the communications. His thoughts then turned to one name: Professor Paradox. The person who was one with the time stream-the only person who could send him to alternate realities.

Then his mind wandered back to the current situation-and Ben realized he would have to find a place to stay while waiting for Paradox to come and find him. That wasn't a problem though, he could just use Diamondhead and sell the crystals that Diamondhead could produce.

Right when Ben was about to do that he remembered that he was in an alternate reality and that he should first go search up on the Internet about any heroes in this world.

-5 minutes later-

Ben was sitting in the Internet cafe with a cup of coffee surfing the Internet. Apparently there was a Justice League in this world which kept peace and protected the Earth from extraterrestrial attacks. But there was no mention of the teen heroes, who looked like miniature replicas of some Justice League heroes.

Ben sighed and logged off the computer and paid for the coffee and Internet connection. He then walked out of the cafe, onto a deserted street and activated the Ultimatrix. After selecting the correct form, Ben slammed down on the core and proclaimed: "XLR8!"

Then with his abilities of manipulating friction XLR8 took off at 500 miles per hour toward Washington D.C., where the Justice League headquarters were located. Little did he know that the real headquarters were in space, orbiting Earth.

-Inside the Cave-

"I just detected a large energy signal headed toward Washington D.C. at super fast speeds. It's the same exact energy signature that was emanating from that Swampfire creature." Batman said while tapping away at a holographic keyboard.

"Flash, I need you and Kid Flash-if he can, of course- to go check it out. The rest of the team and league will meet you up wherever the energy signal goes."

"Got it Bats. Come on kid, I'll race yea." Barry Allen AKA The Flash said to Wally as they speed out of the cave."

-Hall of Justice, 30 minutes later-

XLR8 stopped in front of the Hall of Justice and looked at the grand building. He opened his visor and said, "Well, these superheroes seem to have a large budget." With that said, Ben closed his visor and raced inside.

A few people inside who were looking around turned and stared at the blue creature who had seemed to appear out of thin air. They all looked curiously at this alien, thinking him a superhero but not remembering where they saw the creature.

A reporter, Cat Grant, who was at the Hall of Justice waiting for an interview with Icon, saw this mysterious blue creature and decided to investigate.

She walked over to Ben and asked, "Who are you, and are you a new superhero in the Justice League?"

Ben turned around and was used to people interviewing him, but wasn't used to people asking who he was.

Ben decided to go cool, macho superhero style guy and said, "Who am I? I'm XLR8, one of the newest heroes to this world. And no, I'm not in the Justice League, actually, I never heard about the Justice League until today."

Grant was surprised at this information and stored it mentally in her head-this might be an interesting story. Suddenly The Flash and Kid Flash appeared right behind XLR8 while the doors to the inner parts of the Hall of Justice opened revealing Batman, Superman, Green Lantern, and Wonder Woman.

"Oh... Gotta go bye!" XLR8 quickly said and put down his visor and was gone in a blur out the doors.

"Stop him!" Batman yelled as Flash, Kid Flash, and Superman used their speed to catch up with the alien. Green Lantern quickly created a platform for Batman to stand on and flew after the speedsters. Wonder Woman also followed in pursuit.

Grant blinked in surprise-the "hero" she just talked to was apparently a fugitive of the Justice League!

AN: Thanks for reading! The review really kept me motivated. Also, give me ideas for future chapters!