Hey guys. So, I had an idea of having Ben 10 in the Avatar universe. As in the Last Airbender, not the Sam Worthington movie, which I like. An explanation will come in this chapter. Also, Korra and Ben are gonna get together. I know Asami is Korra's girlfriend, but this is a crossover, and Ben and Korra will get together. I love Korrasami, but this is like an alternate universe from the show.

I don't own Ben 10 or Avatar: The Legend of Korra.

Omniverse: The Legend of Korra

Chapter 1: World of Bending

Dr Psychobos' lab

Ben, Rook, Gwen and Kevin surrounded the psychotic Cerebrocrustacean at his lab. They found out he escaped and was planning a weapon. They went to stop him.

"It's over, Psychobos." Ben told the crab alien.

"Really? Because where I'm s-standing, you are where I want you." He said, pressing a button on a remote.

Then suddenly a portal projector appeared, and was started up.

"What did you do, Psychobos?!" Ben yelled at the scientist.

"My ultimate plan! To be rid of your pers-sistent annoyance!" Psychobos explained. "This machine will suck you all to a new dimension, and I'll will be rid of you."

"You're insane!" Yelled Gwen.

"Yes, but with that, I can begin again. And I use the term loosely." Psychobos said, than started laughing, but not before getting stuck in a net. "What?!"

Rook fired a net from the proto-tool, making the crab alien incapacitated. "Ben, what will we do?"

Ben had an idea, but he thought that it was risky, but he had to it.

"I have a plan." Ben told Rook. "When I run and stop the machine, shoot it."

"What?! But that could suck you in, Ben!" Gwen said.

"I know! But it's the only way!" Ben said, turning into Upgrade. "We have one chance!"

They all nodded, knowing it is the only chance they had. Upgrade turned the projector black with green circuitry, ben tried to stop it, but to no avail. But the He rerouted the power on itself causing a self destruct.

Upgrade got off and turned back to Ben, as he called to Rook to not shoot. Ben was gonna run when he felt a pull on him.

"Wait. Something's off." Rook said, than heard Psychobos laughing.

"You fools. The projector was always meant for you." He said, having to pressed the button, causing for only Ben to be sucked in.

"Aaaaahhhhh!" Ben yelled as he was sucked in the portal. Everyone stood silent at what happened.

?

Ben groaned as he landed hard on the ground. He was not feeling well at all.

"Ow." He moaned, needing some painkillers. "Why is it always me?"

He got up, and saw he was in an alleyway.

"Just great." Ben said, walking out of the alley. When he was out, he found he was in some sort of town he hadn't known about.

"Where am I?" He asked. The town looked like it had a sort of early 20th century feel, with the cars looking like old Model Ts.

Ben walked around, and was getting stares for how he was dressed. Considering that the people wore modern traditional Chinese wear, he wore a green and black t-shirt, brown cargo pants and green and white shoes, so he stood out like a sore thumb.

While Ben was walking, he walked to where a rally was taking place at. He was curious about it. When he walked up, a guy was on a stage shouting.

"Are you tired of living under the tyranny of benders? Then join the Equalists!" The guy said over a megaphone, to which the people cheered. "For too long, the bending elite of this city have forced nonbenders to live as lower class citizens. Join Amon, and together we will tear down the bending establishment."

Ben was confused by what he said. 'NonBenders? What's this guy talking about?'

Sure to the argument, he saw a girl, who had brown skin, dark brown hair in a ponytail, wearing a blue tank top, a sweater wrapped around her waist, blue pants and boots. She was riding what looked like a white dog that almost looked like a polar bear.

"What are you talking about? Bending is the coolest thing in the world." The girl said.

"Really? Let me guess: you're a bender." The guy asked.

'What do they mean by bending?' Ben thought.

"Yeah, I am." The girl said. She wasn't liking what this guy was saying.

"This is what I mean, people! For someone like her to say bending is great, she is saying that she is better than us!" The protestors yelled. The people started to agree. "Well, I say that someone of her race is no better than us!"

That's when Ben decided to stop this from getting out of control.

"Ok, that's enough!" Ben yelled, getting all their attention. "What do you mean by 'her?'"

The guy looked at him confused. "What do you mean, boy? What, are you not from around here?"

"Really? What gave it away?" Ben asked, sarcastically.

"Benders are people who can bend; or control the elements. But, they think they are better for have that power." The guy said.

Ben couldn't believe it. The guy said benders were people that controlled the elements, like most of his aliens. That made him angry.

"So, you're discriminating people for being different? Not cool, dude." Ben told the guy. "Just because most have the power, doesn't make it right for people like you to say otherwise."

"Excuse me?" He asked. Did this boy not know anything? "So, you're suddenly with them?"

"'Them?' There is no them. They are people too, so you need to treat them as people, not anything else."

"Oh yeah?" The guy chuckled. "Well, what are you gonna do about it?"

Just when Ben was gonna do something, an explosion caught his attention. He ran to where it took place.

"Naga, follow that guy." The girl asked her piper, who followed Ben.

*Republic City Bank*

A group of guys came from the bank, with bags of money. The hauled it to a truck.

"Ha! Who knew bending can get us rich?" One guy asked.

"I don't know, but we should have done this years ago!" Another laughed.

"Come on, we gotta get outta here!" The leader told the two. But before they did that, the leader was kicked in the face.

"Ow! Hey, who did that?!" He asked. Then he saw a young man come out.

"Hey, What's the rush?" The boy asked.

"Who the heck are you?" The leader asked.

"Ben. I'm new around here." Ben said. "And it looks like you're the first guys to get put in jail."

"Really? You, all by yourself?" The guy asked.

"No. By the both of us." A voice called out, as the girl that Ben saw in the park followed him.

"Yeah, What makes you so sure? Who are you, girly?" The leader laughed.

"My name is Korra, not girly. And for your information, I happen to be… the Avatar." She said, bending some drain water in her hands.

Everyone, except Ben, was surprised by what she said. She's the new Avatar?

'Avatar? What exactly is that?' Thought Ben.

"No way!" The leader said, not believing this. He then turned to Ben. "And what about you?"

Ben just smirked. "You can say I'm a 'jack of all trades' kind of guy." Ben said, activating the watch.

The guys were gonna attack, but Ben slammed the watch down, being covered in green light.

"What's going on?" One of the robbers asked, getting scared.

"There's nothing to worry 'bout. He's just a kid." The lead robber said, but heard a voice coming from where Ben was standing.

"Just a kid, huh?" A deep voice asked, the light disappearing and standing there was something different. Standing there was a hulking, 12 foot tall red being. It wore a black shirt with a green stripe going down the middle, three spikes on its head and marking that look like a beard, four muscular arms, fingerless gloves, and black pants. It also had a green belt with an hourglass shaped buckle.

"W-What the heck is that thing?" One of the robbers asked.

"It's me, Ben, but I have the power to change it to different aliens. This form is what I call Four Arms." Four Arms said, cracking all four knuckles.

Everyone saw this and were astonished, confused and scared. A boy that can turn into creatures called aliens?

The robbers were scared, more of the red being there, but they are also facing the Avatar, the Avatar.

"Hold your ground, guys! There's two of them and three of us! We outnumber them!" The leader said.

"Oh man, you're gonna regret messing with me, cause I'm not gonna go down easily." Four Arms said.

The two robbers charged at Four Arms, who just stood there. When one of them bender some earth at him, he waited and caught the piece and threw it at the two.

"Seriously, that's cool, but you guys suck at this." He commented, but then couldn't move his legs. He looked down and saw that some earth had trapped him in place. "Ok, I could be wrong."

Korra was going to town with the leader, but saw the red creature having trouble. So, she put firebend the leader and went to help, but saw the creature not needing help, as it got out and hit the two guys heads together.

Four Arms slapped the symbol on his belt, and turned back to Ben. Korra went up to him.

"Wow, That was awesome! How do you do that?" Korra asked, excited to see how he did that.

"It's What I always do." Ben said. "And to who I am, Ben Tennyson, by just call me Ben."

"Korra. So, you're not from here, aren't you?" She asked.

He didn't answer as a bunch of police officers came around them. They both raised their hands up, signifying they are not gonna do anything.

"Aw, crap." Ben said, as an officer took him and Korra to the police station.

*some time later*

"So, you say you're not from here. What do you mean by that?" An officer asked Ben.

"If I said that I'm not from here, would you ask where I'm from?" Ben asked.

"Are you a spy of a nation?" The officer asked.

"What? What would make you assume that?" Ben asked, having no idea what he's talking about.

"It's ok, officers." A voice came from the door. Ben saw a middle-aged man standing in the door. He wore an ensemble of orange and red clothing, had a goatee and was bald, with a blue arrow.

"Councilman Tenzin. What are you doing here?" The officer asked.

"Well, when I heard that the Avatar stopped a robbery with help, I knew she would be in trouble." Tenzin said. "But she did stop those robbers, and this boy helped her, from what I heard."

"But, Councilman. He could be a spy for all we know." The officer said, pointing at Ben.

"Hello, I can hear what you're saying." Ben said.

"Even if that is it, he helped. So, for now, he's under my care." Tenzin said. "Come on."

Ben stood up. "See you later." And walked out.

While walking, Tenzin looked at him. "Look, I only got you out because of Korra asking me to. You will explain who you are when we go to my home."

"Don't worry. I'll tell what I can." Ben said, walking out. Just then, Korra walked out with the lady.

"Tension! Ben!" She said, seeing the two. She hugged Tenzin, and Ben.

"Hello, Lin." Tenzin said to the lady. "It's nice to see you."

"Can it, Tenzin." Lin said. "There are rules to not let something like this happen."

"I know. I will take Korra back to the South Pole, where she will be look after until she is more mature." Tenzin said, getting a shocked expression from Korra.

"You can't be serious!" She said, not believing him. "I don't do I thing wrong! I stopped those guys!"

"Yes, and as much as I want to say, you also exposed yourself." Tenzin said.

"Well, he helped too." Korra said, pointing at Ben.

"Hey! Why are you bringing me into this?" Ben asked.

"Yes, I almost forgot. What will you do with the boy?" Lin asked.

"Until further notice, he will be under my charge." Tenzin said. "Until I know more, he'll live with me and my family on the island."

"Very well, Tenzin." Lin said. She turned to face Ben. "Watch yourself, boy." After that, she walked off.

"Wow. Isn't she a bit of fun?" Ben said sarcastically.

Tenzin looked at Korra and how she looked right now. "Korra, I know how you feel, but you're just not ready."

"Whatever. Let's go." Korra said.

"I did say I had to take you back." Tenzin said. "But I ever said when."

Korra looked at him. "You mean..?"

"Korra, I've seen you grow from the little to this beautiful young Avatar. So, until then, you're gonna live with me on Air Temple Island." Tenzin said.

Korra hugger Tenzin, and cried. "Thank you! Thank you! Thank you!"

Tenzin chuckled. "And for you, Ben, I want to know what you are doing here. It's clear you're not from around here."

"Don't worry, I won't lie." Ben said.

"Well, let's get going." Tenzin said.

They walked outside, just as Naga went to pick Korra. Korra laughed as the polar bear dog licked her.

"Ok, ok. I missed you too." Korra said. "Ben, this is Naga." Korra said, introducing the two.

Ben stood there as the dog sniffed him, and...licked him, covering him in drool. Ben started to get it off him.

"Gross! Dog drool!" Ben exclaimed. "Come on!"

"Don't worry, Ben. It comes out." Korra said. "I think."

"Great. Now I'm gonna smell like dog." Ben said.

"Let me help." Tenzin said, doing some katas before….blasting Ben with an adequate amount of air.

Ben's hair now stood up as he had a face of shock. "What was that?"

"Airbending." Tenzin said. Ben looked at himself, and put his hair back to normal.

"Now That was cool." Ben said. "Well, how are we gonna get to this island?"

"This way." Tenzin said as he whistled for something. Just then, a flying animal came in front of them.

The animal was white, with six legs, a brown arrow, and a saddle on its back. It growled as it landed.

"Oogi." Tenzin said. "This is a flying bison." Tenzin said, hopping on it. Korra and Naga jumped on the animal too.

"Come on, Ben. Getting to Air Temple Island is to fly." Korra said.

"Fly?" Ben asked. "Easy." He said, scrolling through the watch. He found the alien and slammed the watch, being covered in light. Tenzin and Korra had to cover their eyes because the light was bright.

When the light faded, a new being was there. It was a being that looked like a moth, with green eyes, and his mouth showed his teeth. It wore a hood of some sorts.

"Big Chill!" It shouted. "Ok, this guy will do."

"Ben?" Korra asked. "Is that you?"

"Yeah, it's me." Big Chill said. "This is one of my flyers, Big Chill. Watch." Then, he unfolded his cloak to reveal his wings, and started tooft off the floor.

"That is so cool!" Korra said, excitedly. "I wish I could do that."

"Well, when you get a watch that can allow you to change into over a million alien species, let me know." Big Chill said as they started to fly.

Unknown to them, they were being watch. Standing on a building a few blocks away, a man wearing a mask was viewing them through a telescope.

"Well, you were right." The man said. "He did come. Question is, why do you need him?"

Then, coming from a holographic projector, was none other than…Vilgax! "Ben Tennyson is my enemy. If he is here, he will stop our plans for coming."

"Don't worry. I'll stop him myself." The masked man said.

"Do not let that foolish arrogance control your choice, Amon." Vilgax said. "Ben Tennyson is a smarter fighter than you. Heat had yourself." And the projector shut off.

"Vilgax, I won't let the boy get to me." Amon said. "Once He is out of the way, the Avatar is my next target."

He then chuckled as his plan was starting to come together.

Hey guys, so this was an idea I had, but put in the back for awhile. But I finished and will continue to write this as well as my other stories. I hope everyone will like this.