Co-Creator: Firestorm808

Disclaimer: I do not own Ben 10, MCU and any medium that appears in this. They belong to Man of Action and their respective owners. Disney. I do own this plot and the original characters that may appear in this.

AN: Hello! This is my first ever story, so please bear with me if there's any errors and the like. Ben will NOT lose his friends and family and will try to off himself. No offense to anyone who does that ( ex. Incredible Muffin wrote an excellent story ) but I'm tired of DARKNESS! NO PARENTS! CONTINUED DARKNESS! The JL / Young Justice crossover is filled with that, so I'm going against the tide.

Other than certain events, aliens forms, and characters, I'm avoiding Omniverse. That show annoys me to no end for making Ben became less mature than his 10-year-old self and other things I'll get into later. And some designs and aliens are hideous. Big Chill looks like he's on steroids, which destroys the phantom look he had going. And the whatever the heck The Worst was..."shudders". Jury Rigg looks surprisingly good though. That design stays.

This timeline is 3 years after Ben gets the new Omnitrix ( but keeps the Ultimate forms ) and just before the Avengers fight Loki in Germany. He already finished college and is Nineteen years old.

"Dialogue"

'Thoughts'

Sound

Chapter One: The Next Step

Ben Tennyson, the savior of the Universe and wielder of the Omnitrix, was walking around Bellwood with hands in his pockets. He took in every building, sign, and person on the street. Turning to walk home, Ben contemplated what he'd learned and the life-changing decision he'll have to make. It all started with a visit from a particular time walker.

*Flashback*

After defeating Dr. Animo and his giant mutated frog… again, Ben, Gwen, and Kevin decided to call it a day and head home. When Kevin offered to take him home along with Gwen, Ben declined and instead just wanted to walk. As he walked, he noticed that cars, birds, and people going down the street froze in place. As in time had stopped.

Shocked, Ben turned around and saw the person who did it. Standing behind him was a tall man wearing a white lab coat with a brown vest under it. Black dress pants along with black leather shoes covered his lower half. Green goggles that hung around his neck completed the look. All in all, he looked like a Professor.

"Professor Paradox?" Ben then noticed the slightly solemn face that the usually calm and collected man had.

"Is something wrong? There isn't a universal threat happening is there?" That would be his luck, after three years of getting the new Omnitrix.

"No Ben, this Universe is fine." Ben sighed in relief. "It's another universe that is in trouble."

"You see Ben, as a Time Walker, I have come into contact with alternate realities that you couldn't imagine. Realities where spirits with special blades fight evil spirits. A team who defends their universe from the forces of evil. Where eating fruit can give you amazing powers. And so forth."

"This particular Reality is an interesting one. On Earth, different countries exist there that don't exist here. Humans with special powers also exist. And the technology is also exciting. Some species are so advanced that they call their technology magic. Ben, it is simply marvelous."

Blinking, Ben shook his head. That did sound pretty awesome. His visit to Rex's Universe had made him interested in different realities. But one thing bothered him. "Is this Universe in trouble"?

Nodding his head, Paradox continued. There is a mighty dictator who strives to wield a powerful artifact called the Infinity Gauntlet. To make it work, he needs gems called the Infinity Stones. If he gets them all, he can destroy a universe with just a snap of his fingers. It is a multiversal threat, Ben."

Open mouthed with horror; Ben could only stare. 'With a snap of his fingers? Not even Vilgax was that bad. Granted, he would have tried if given a chance.'

Paradox continued. "On Earth, a team is being assembled to fight an invasion by one of his enforcers. That invasion will shape that world forever and beyond. Threats will rise to wreak havoc across the globe and the stars."

"What I'm going to ask you is big Ben. Can you take a long-term mission in this universe? It will span years, with you making connections with heroes and people there".

"Years? What about my family?" While Ben wanted to help this Universe, he just couldn't abandon them for years."

"No worries Ben. I'll give you a special device that allows you to visit your home when the time calls for it. I wouldn't tear them from you. But realize this Ben, if you say yes, you will be given a week to pack and tell your family before we leave."

Ben could only blink. So much had happened in so little time. First Paradox came, explained about some tyrant that wanted to take out half of the universe, and now he wants him to take a long-term mission over there that can last years."

"Can I have time to think, please? The situation is a lot to take in." The Professor nodded. Of course Ben, you have until tomorrow evening to decide." And with that, he disappeared with a flash of blue light and time started again.

*Flashback End*

As he came up to his house, Ben sighed. 'Should he help? It was the right thing to do, and it's not like he'll never see his family again and he did have a week to say tell everyone if he said yes'…

Stepping inside, he knew whatever decision he made; it will change his life forever.

Seeing that his parents weren't home yet, he looked at the clock on the wall. 4:45 PM. That gave him fifteen minutes before his parents came back to get dinner ready. Knowing it will be now or never, he decided to tell everyone what will he do. Reaching into his coat pocket, he pulled out a cell phone. While it was no smartphone, it got the job done.

Quickly, he fired texts off to Gwen, Kevin, and Grandpa Max that he had Big news and to come to his house immediately. Waiting for the inevitable, he sat down on the couch, put in his wireless earbuds, and listened to music. 'What a day. Paradox said that this threat could be multiversal? Just what or who is this tyrant?' Ben had faced off foes like Vilgax, Aggregor, and even Diagon. A supposed God. And not even them thought of doing that. 'Well, Eon did want to control all of reality that one time. But something tells me this is different'.

Ben then noticed the front door jiggle for a bit before opening, showing his Mother and Father holding groceries along with the people he texted. As they all shuffled in, he paused the music. "Ben, his mom asked; do I want to know why when Carl and I drove into the driveway, your Grandfather, cousin, and friend was there looking worried?"

"Yeah, Tennyson remarked Kevin, his childhood enemy and now friend. I was just in Gwen's driveway before we got your text. What's the big news?"

Standing up, he mentally took a deep breath before starting. "Grandpa Max, Gwen, Kevin, Professor Paradox came to me after you drove off." They were startled.

"Paradox? What does he want?" asked his cousin.

"Umm… who's this Paradox guy and what does he have to do with my son?" asked his father, who looked loss along with his mother.

"He's an immortal time traveler" replied Grandpa Max.

Carl blinked. "Oh that's ni...wait... what?!"

Ben continued. "He told me that in another Universe, there is a tyrant who wants to use a powerful item called the Infinity Gauntlet. With it along with gems called the Infinity Stones, he can destroy half of the universe with a snap of his fingers. As the group looked on horrified, he kept going.

"But that won't be enough; soon he'll go after other Universes. Which means sooner or later he'll go to our universe too. With that, Professor Paradox suggested that I take a long-term mission that will last years. And after thinking, about it, I will go".

Raising his hand before anyone disagreed, he then went on the reasons why.

"I can't in good conscience let universes potentially die when I could have saved them. Uncountable innocent lives are at stake here because of some power hungry man on a power trip. I refuse to let that happen."

"Gwen, Kevin, I don't want to give you reasons to leave your family behind, and I need someone to hold down the fort. And it's not like I'll be gone forever. I can visit whenever the time calls."

"Mom, Dad, Grandpa, you know I have to do this. I'll promise to visit whenever I get the chance and tell you what happened."

As he finished, he took in the group's expressions. Kevin looked shocked, but Ben could see the respect in his eyes. Gwen looked like she wanted to argue but didn't know what to say. His parents had resigned faces, and Grandpa had nothing but pride in his eyes.

Grandpa Max suddenly spoke up. "Well Ben, that was a lot to take in. But the minute you started explaining, I knew that you were going to go. So all I got to say is this". As he said this, he put his hand on Ben's shoulder.

"Go out there and make the Tennyson name proud."

After that, the rest of the week was one could only describe as hectic. As Ben was preparing to leave, he was given presents as a goodbye gifts by his friends and family. Kevin gave him one of those awkward guy hugs before handing him what looked like black fingerless gloves that had slightly raised bumps on the knuckles. Kevin described the bumps acted not only like brass knuckles, but if he clenched his hands the right way, they could be covered in electricity that can pack an extra punch.

Gwen and his alien Grandmother Verdona both got Ben what looked like a large black and blue backpack. Ben was confused at first until they explained that the bag was spelled to hold items bigger and heavier things inside. They said that he can pack all of his stuff in it and still have room for more. And the bag will be lighter than a feather.

Grandpa Max gift was clothes. It was a hooded jacket and a pair of pants. The jacket was pure white with two purple bands around the arms and a dark green Ten on his chest. The drawstrings, cuffs, and stitching were green. The pants resembled black jeans with pockets. Grandpa had told him that the clothes had been made from a plant from Planet Augstaka. Ben's eyes widened.

"The Highbreed homeworld? Wait, does this mean Reiny had a hand in this?" Max nodded.

"When he heard of your quest, he instantly commissioned you this. The fabric was made from a plant that's known to make durable cloth. While acting like normal clothes, you'll be protected by the alien equivalent of kevlar armor."

Ben whistled. "Remind me to send him a thank you card."

The Plumbers told him it was an honor working with him before giving him an upgraded ID mask. While it looked the same, it wasn't locked with one disguise anymore. You could have any appearance. Think about what your disguise should be and put it on and presto.

But what Azumth gave him practically sent him sprawling on the ground weeping. "You made me a Mr. Smoothy Maker?!" In front of him was a large square device that had a nozzle and a tank for adding in the ingredients. When he told him what it was for, the alien frog nearly got his back broken by a hug.

"Thank You So Much! You have no idea what this means to me! I thought I was going to be in a bleak world without Manna from Heaven!"

"Ugh. Let go of me, Tennyson!" Looking sheepish, he placed the creator of the Omnitrix down.

Azmuth sighed. "Take care of yourself, Ben. We're counting on you to be safe".

"Also, I decided to give you this." The Galvan motioned to what looked like a sleek, thin smartphone.

"This was your old outdated communication device. I decided to give it a much needed upgrade for your long trip."

"Really? Sweet! What does it do?"

Azmuth only stroked his beard with a smirk. "Heh. You'll find out eventually."

On the night he was supposed to go, he family threw him a party. The whole day was filled with food, drinks, and fun. As he sat eating what will be his last Burger Shack meal for a long time, he was glad he was lucky to be surrounded by such people.

This was it. Time to go. Donned in his new attire and backpack slung over his shoulder, Ben looked at the group that came to see him off. It was a big group. To his immediate family, Julie, Ship, the Plumber Kids, Reiny, Azmuth, and even Cicely with her son. Seeing a blue flash behind him, he knew it was time. Turning around, he saw Paradox smiling at him. "Time to go, Ben."

Walking towards him, Paradox handed him what looked like a pocket watch. "When it's time to you to visit your home, this will make a certain sound and glow blue." Nodding, Ben took it and placed it in his pocket.

"Ben, when I activate my power, you will be transferred to a moment when your team is will start out. Be prepared".

Ben turned back to the group one last time and waved. "Goodbye, guys! See you later!" Blinding blue light engulfed the hero, and when it stopped, the hero of the universe was gone.

That's a wrap. I want to give a special shout out to Firestorm808. If it wasn't for him helping me proof read this story among other things, i would had never gotten the courage to submit this. You should check out his stories! Ben gotten his Omniverse hoodie. Which admittedly i liked. And as for why the arm bands are purple instead of green...well that will be spoilers ;)