Alright, I have a bunch of things I need to establish before I start writing this fanfic. I suppose I ought to put them in a list.

1.) First off, I have never played FusionFall, so please excuse any impossible scenarios and mistakes as far as cast/roles-of-cast/setting/ages/plot/etc.

2.) No nanos. There convenient in the game, but I don't see the point in using them in a story.

3.) Just about all of the OCs (there are quite a lot) are all from one of my original stories.

4.) Ben Tennyson has the appearance and alien transformations of the Ben Tennyson off of Ben 10: Alien Force.

5.) Lastly, this fiction takes place after the Fusion War is over and Lord Fuse has moved on.

On with the fiction!

Chapter 1: The Letter

It had been a year after the merciless attacks from Lord Fuse, and the green menace had moved on to some unknown territory. As the citizens of Earth strived to rebuild what had been lost and destroyed, one question haunted their minds.

Would he return?

That simple question had forced anxiety down upon many good warriors that had taken part in the Fusion War but it affected one the most. Not a man, but a boy.

After a long hard year of reconstruction, fourteen-year-old scientist finally had the chance to partake in a much needed rest. He kicked his boots off, removed his lab coat and sat on the side of his bed. He patted the welcoming comforter. He removed his thick-rimmed glasses, and blinked his drowsy blue eyes a couple times. In no rush, he slid under the covers of his bed and cut off the lamp on his nightstand. His head, covered in thick red hair, was gently laid on the pillow and a look of peaceful content splashed over his face like a wave.

Just as soon as that wave of well deserved relief covered him, a loud beeping from somewhere down below could be heard for miles. Dexter's closed eyes shut tighter, and he cringed. As if trained to do so, he threw off the blankets and leapt to his feet. He put on his lab coat and boots in record timing, and in a matter of seconds, was running down the staircase to his elaborate, secret laboratory.

"Computress! What is the meaning of this alarm?" he demanded as his boots clacked against the metal floor.

His faithful computer system that had been moved to his underground laboratory after the fusion war stood several yards before him as a humanoid, female robot. The alarms dissipated as she turned to face him. She looked to her creator. "We have an intruder in Quadrant III of Sector Alpha."

Intruder? Dexter thought as his mouth opened in surprise. His facilities were impenetrable! How could anyone have gotten through?

Before the war, he would have assumed it was Mandark with another one of his futile attacks to destroy Dexter's laboratory or steal some of his technology. But now, his mind immediately jumped to the worst of conclusions. Perhaps a mass of fusion spawns or his fusion replica. Or any other fusion duplicate of an organic being for that matter.

Quickly, Dexter swiped a null-void laser off and began to race towards Computress's encrypted coordinates. As he ran, he thought. Quadrant III of Sector Alpha. . . That's where I stashed the fusion samples!

He heard the crashing of glass in the near distance and quickened his pace. His hand tightened firmly around the null-void laser. As he whirled around the corner of one large invention, the life-size prototype for the exo-suit that assisted him in dodgeball, he skid to a halt. There was a rather good sized hole in the roof of his lab, allowing darkness and moonlight from the world above to seep down on the redheaded scientist and into his laboratory. Beneath the hole, black marks traced out a large star with many points as though an explosion had taken place.

Dexter's eyes darted back and forth as he searched for the intruder. He noted that a vial of an acidic, yellow substance had been the crash he had heard and the substance was now burning through the floor. But that was not his main concern. He watched as a shadow moved behind him. His finger placed gently onto the trigger of the null-void, and he whirled around, his lab coat swooshing around him.

A boy appearing to be only sixteen yet nearly a foot and a half taller than the young scientist stood dignifiedly before Dexter. He wore a black and white uniform that resembled something Dexter had seen off of Star Trek.

"Dexter of DexLabs?" the dark-haired boy quizzed.

"Who are you?" Dexter demanded, putting on his best emotionless expression.

"That's not important," he dismissed the question quickly, "Are you Dexter of DexLabs?"

The redhead countered, "That isn't important either."

The older boy stifled a sigh and replied, "I'm Jacen Tyner, Supreme Commander of the Gamma Agency."

"The Gamma Agency?" One of Dexter's eyebrows rose quizzically.

"You answer my question first," Jacen ordered. "Are. You. Dexter of Dexlabs?"

Dexter stared at him, his blue eyes locking with the intruder's brown. For a while, it was a stare-off between the two of them. Finally, Dexter admitted, "I am."

Jacen Tyner pulled a cylinder-shaped machine out of a pack strapped to the side of his belt. The redhead's grip on his null-void became even tighter, ready for an incoming attack.

Nonchalantly, the older teen informed, "I have a message for you."

Keeping his curiosity contained, Dexter eyed the odd, tubular container suspiciously. Jacen rolled his eyes and placed his hand on the end of the tube. With a quick jerk of the wrist, the cap of the high tech container popped off, and Jacen reached inside. He pulled out an ordinary, old envelope and held it out for Dexter to take.

Dexter stretched out his gloved hand and took the cream-colored envelope. He looked it over for a return address of some sort. Strangely though, it had no address of any sort inscribed on it. His eyes jumped over the top of the letter to look at his even stranger, uninvited guest. The dark-haired, self-proclaimed Supreme Commander gave a quick solute and kicked his heels together. Doing so, rockets activated at the bottom of his black, military-style boots. He blasted off before Dexter got the chance to question him further.

Dexter stared after the smoke trail that led out the large hole in his ceiling with an unreadable expression on his face. It was not unreadable because he was masking his emotions, but because there was such a jumbled mess of stress, irritation, confusion, and other such emotions that it was impossible to even attempt reading.

Once the older teen was a mere speck in the midnight sky, Dexter whirled around, his coat flapping behind him, and marched off.

"Computress! Activate the automatic repair system for the ceiling of Quadrant III of Sector Alpha!"

"Yes, Dexter."

He stared down at the envelope in his purple gloved-hand and thoughts began to swarm his head. . .

LlLlLlLlLlLlLlLlLlLlLlLl

Fifteen-year-old Ben Tennyson had been happily asleep in his bedroom when he received Dexter's message. It didn't take much to wake him now-a-days since during the war, he had to be ready to jump to attention at the slightest, out-of-place noise. He leapt to his feet at the sound of an incoming video transmission on his computer. Without a second wasted, he sat down in front of the monitor and clicked the accept transmission button. The face of a familiar redheaded scientist Ben had miraculously managed to befriend appeared on the screen. He looked troubled, as though he had laid eyes on Ghost Freak.

"What's up, Dex?" Ben asked in a failed attempt at being slightly optimistic.

"I require your presence at my laboratory," the oh-so familiar Russian accent rang through the speakers and into Ben's ears, "Immediately."

Ben cocked his head a bit, "What for?" He glanced at the time. "It's, like, 1 a.m. Everything alright?"

"No, everything is not alright," Dexter replied curtly. His frustration was not aimed towards Ben though. His mind was obviously elsewhere calculating something that seemed impossible to the average human mind—as usual. "I have rather disturbing news that I would much rather discuss with you in person."

It was not a request, nor was it a suggestion. It was, beyond a shadow of a doubt, a command. Ben restrained his groans of exhaustion that was gradually starting to set in as he nodded quickly. "Sure thing. Be there in a sec."

He pressed the escape key and before Dexter could add anything else, the transmission was disengaged. If Ben had done this anytime before he had befriended the peculiar young scientist, Dexter would've thrown a temper tantrum and most likely ripped the shape-shifting hero's head off when he arrived. But, Ben was still not in the safe zone. He could very likely receive such punishment during arrival; it simply depended on the mood of his redheaded companion.

As Ben raced out onto the midnight street and morphed into the speediest alien he could think of—Jetray—he began to wonder what this disturbing news that Dexter wanted to discuss with him could possibly be. The young scientist's current mood was enough to disturb him. Though he had merely got a glance of Dexter through the computer's monitor, he could tell that the founder of DexLabs was not himself. He looked as though he were an unfortunate, young child who just so happen to lay eyes on a rated R horror film. The thought made Ben's skin crawl.

Ben landed outside of Dexter's seemingly-ordinary home. With a green flash, his red-skinned, bat-like appearance morphed back into a seemingly-ordinary teenager's appearance. With a sense of impending doom playing dodgeball in his stomach, he approached the door. He reached out with the arm that carried the valuable alien technology, and as he prepared to knock, the ground beneath him disappeared.

The rug he had been standing on had slid back, and he was plummeting down a spiraling, curving, jerking shaft. He landed flat on his back in the expansive laboratory that was in Dexter's possession. Speaking of the devil, he loomed over Ben with a dark, troubled expression.

"No need in waking my guardians," he noted with his mouth a grim line.

With a grunt of pain, Ben sat up and rubbed the back of his head. "Right. Mind giving me a bit of warning next time?"

"My apologies," Dexter said, turning on his heel and marching towards his precious super computer's monitor.

Ben lurched to his feet and followed after him. He noticed that before the monitor was a metal table with a small stack of paper and an envelope atop it. Simultaneously, he noticed as Dexter cringed at the sight of it. The young scientist took the papers cautiously held them out to Ben.

"Read," was his only command.

Obediently, Ben took the papers and read with the curiosity of a thousand young toddlers.

Sent by Gabriel Sevin

Addressed to Dexter of DexLabs,

It has come to my attention that you lead the attack force on Earth against the Fusion. If that is incorrect, feel free to correct me. The massive amount of citizens of Galaxy Beta desperately requires your assistance. More specifically, your knowledge and experience with such a deadly adversary.

I am not requesting that you come in person to assist the Allied Forces of Galaxy Beta (AFGB), but background knowledge on the Fusion would be very helpful. I know that you are very busy, especially with all the reconstruction that Earth requires, but I beg you consider the AFGB.

Galaxy Beta sister's the galaxy you Earth humans call the Milky Way (the proper intergalactic term for it is the Galaxy Gamma). Earth is not close enough to be directly affected by this attack against Galaxy Beta, but in time, it shall cause the entire universe to fall apart.

I suppose you are wondering how the Fusion could attack something as massive as a galaxy. I believe I should inform you that the Planet Fusion you dealt with on Earth was just one of the many. If you continue onto the photo on the next page, you will understand what I mean by that.

Ben's hands trembled slightly with anxiety as he sent the first page to the back of the stack and looked at the photo that took up the entire second page. He staggered back and luckily grabbed the control desk with one hand to steady himself.

Trillions of green dots surrounded a mass of other dots including planetary systems, starts, etcetera forming a gargantuan green circle. So many Fusion Planets, so many masses of fusing, green evil. Ben had to struggle to keep his mind straight with this massive overload.

He couldn't bear to read the rest of the letter, but he felt he had to. These people, or aliens, needed help.

Ben reluctantly changed the page with uncontrollably shaking hands.

I know that was a tremendous shock to you; it shocked me as well when I first saw it. You see Earth was in the way of one of the multitude of Fusion Planets' trajectory. Its first and only instinct was to attack and fuse. It did not expect the forces of Earth to be as powerful and strong-willed as you all proved yourselves to be.

I doubt that this multitude of vile green has done anything along the lines of this in all recorded history. It is very likely that the Fusion had been planning this. The destruction and fusing of an entire galaxy would make a Fusion mass so huge, so enormous that it would have a gravitational force of its own so powerful, it would pull the entire universe towards it. That is a nightmare all its own. I said before that this would not affect Earth directly, but once the gigantic mass of Fusion Matter is formed. . . There is no hope for any civilization or planetary system in the universe.

Now that you see the desperation of the situation, I plead that you would think about any means possible of preventing this catastrophe. I do not promise safety if you so chose to come personally to assist the AFGB, but I do so solemnly swear to do everything in my power to have you and any companions or teammates you chose to bring along kept under safe and heavy guard. The universe is in desperate need of your aid. Please consider.

Ben laid the stack on the table and closed his eyes tightly; he pinched the bridge of his nose to comprise the building pressure in his head. Now he understood why Dexter seemed so frightened, so shaken. If someone had sent Tennyson a letter saying that the entire universe was in jeopardy, he would appear the same.

The brunette opened his eyes and glanced at his peculiar young friend. He was glad to see that he was not the only one slightly trembling in fear and shock. Their eyes locked and exchanged a look of understanding. They were going to do everything in their power to stop this massive threat.

There's chapter one. Now isn't that a bombshell? Please R&R! And if you feel there is anything (as far as according to the actual game) that you ought to correct me on, please do so in your reviews.