Disclaimer: - I do not own the rights to any of the characters, both main and supporting ones, within this story unless I create them. They are all based off the various shows created by Cartoon Network. Thank you, and enjoy the show.

Earth's Mightiest Defenders:

Prologue:

The Calm Before The Storm

Vilgaxia, the Chimera System:

On the far side of the universe, millions of lightyears away from the small planet of Earth, there is a world that is known and feared by all within the borders of the Galactic Alliance. It merely hangs in orbit, circling around the bright sun that serves as the source of light for all the planets within its solar system.

From orbit, the planet looked like a beautiful jewel that was a stark contrast from the cold, dark void of outer space with its teal-like color that would make many artists jaws drop in awe at its beauty. When one takes a closer look, they would most likely find the planet to be teeming with rich organic life inhabiting the various mountain ranges, the large oceans and scattered inland seas, and the alien-like architect of the cities that the planet's citizenry lived in.

However, there are two reasons why the universe's organic beings would distant themselves away from this certain solar system. The first reason being the fact that the Galactic Alliance declared an intergalactic-wide mandatory law that prohibits any citizen born within the Alliance's territories to take one millimeter towards this specific region of space and they are to be brought to the galactic capital itself and sentenced to life in the Null Void without any chance of release.

And the second, and the most important reason, is the fact that the… creature that serves as the planet's ruler is the most dangerous being in the universe. This man has been known for his dangerously short temper, brutal war tactics, and his vast array of military resources. He has conquered ten solar systems on his own, destroyed five with a single command, and even created a black hole through unknown methods that has left many scientists dumbfounded by it.

And the name of this deadly warlord… is Vilgax the Conqueror.

Currently, the Chimera Sui Generis warrior was sitting in the command chair that was positioned in the middle of his command bridge for the Chimerian Hammer Mk. II, a more modified version of his original vessel that was destroyed during the warlord's first battle with his most hated enemy just little over a year ago.

Just the mere thought of the child who had robbed him of the ultimate power in the universe sent a hot-white rage through the remains of his organic body that was still functional. That smug grin, that annoying voice that made Vilgax want to slice out the child's vocal cords to achieve some level of peace and quiet, and the worst part about him, in Vilgax's most humble opinion, was the fact that the boy held the most powerful device ever created on his wrist… and used it for good.

That was what made Vilgax despise Ben Tennyson with every fiber of his being, along with his wretched cousin and that insufferable old fool, Max Tennyson. To him, the Omnitrix is the literal definition of the word "power" as the device contains the DNA samples of every alien species in existence within its core, allowing the watch's user to take on any form that they wish and use that alien's power for whatever purpose they desire. On a backwater planet like Earth, he wouldn't have needed the Omnitrix to conquer it, but had a normal human found the watch before Tennyson, their natural desire for power and greed would have most likely ruled out all sort of logical thinking for them, allowing them to take whatever they wanted and without complaint from any of that mudball's measly governments.

And yet, Tennyson didn't do any of that. Instead, the young child had chosen to follow down the path that his grandfather had left open for him to inherit; the path of a hero.

Foolish boy, Vilgax thought acidly, a sneer forming on his charred lips that was hidden behind the large respirator that was hooked onto his squid-like head. He could be ruling his planet like a god by now, and yet, he chooses to waste it on mindless heroics just like his damnable grandfather.

Rage filled Vilgax's entire being so much that he didn't notice himself digging his metallic claws into the chair's armrests, leaving deep engravings on the cold, hard metal. He also didn't notice his Drones working a little faster than their regular speed, no doubt trying to distance themselves away from their master's wrath. Suddenly, the doorway to the command bridge opened up from behind, filling the normally darkened room with an intense bright light that brought Vilgax out of his brooding.

Striding onto the bridge casually was an alien who bore a skeletal-like appearance that would send a chill up many people's spines. His body was a pure milky-white with black markings decorating his head, specifically around his blood-red eyes. He wore a long black robe that went down to his feet and had an alien-like device strapped onto his chest with several distinct red markings.

This was Psyphon, Vilgax's servant and right-hand man.

"My master," Psyphon said in a raspy voice, bending down on one knee as he and the other minions had learned to do when one was in the presence of Lord Vilgax.

"Rise, my servant," the Chimera Sui Generis commanded, his deep and gargling voice echoing through the dimly-lit bridge. "What is the status of my armada?"

Psyphon continued to grovel before his master's cybernetic feet. "All ships have reported in, and are ready to depart from Vilgaxia when you give the command, master. We have an accounted amount of approximately one million Drones ready for combat, and each of the Dreadnaughts weapons are fully-stocked and well-prepared for any sign of resistance." Vilgax had to admit that, while Psyphon is a sniveling coward in his presence, the alien made for a good assistant and his photographic memory on every single little detail has proved to be beneficial to the warlord whenever the situation calls for it.

Yet another reason why I should have brought him with me during my original search for the Omnitrix, he thought ruefully to himself. No matter, this time will be different.

But Vilgax did not dwell on the matter any longer, as he continued to speak, "Has the Galactic Alliance learned of our plan to attack Earth?"

"No, master," Psyphon shook his pointy head back-and-forth. "They are currently occupied with an uprising in the Rouleau sector."

"Good," the warlord growled in satisfaction, very pleased of this recent development. "Open up a link in the communications channel and patch the signal onto all ships at once."

His second-in-command bowed to his lord before he stood up and went over to where the communications officer was to relay their master's command. Vilgax waited patiently in his chair for several minutes for the message to be passed onto the armada, somewhat surprising Psyphon that the Chimera Sui Generis hasn't destroyed any of his minions in the room due to the amount of time it was taking to link up each ship's communications channel to their own. Though it shouldn't be surprising, Psyphon thought, turning his attention back to the console he was currently hovering over. The master has been waiting for this day for so long that I can't even fathom what's going inside his head.

A loud beep suddenly jolted Psyphon out his thoughts, even making the skeletal alien flinch a bit of its sheer volume, before the Drone operating the console turned to look up at him. "All ships have been linked up to ours, Commander Psyphon, and are currently awaiting Lord Vilgax's command."

Psyphon smiled grimly, turning to look at his master and said, "The floor is yours, my master."

Vilgax slowly sat up from his chair, his body's servos make a low whirring sound, before he walked over to where the communications hub and came to halt. The Drone that acted as the ship's communications officer handed his master a small device that would allow his voice to be heard across the warlord's armada of deadly warships. Vilgax paused for a moment, staring at the small device in his enormously large hand, before he started to speak,

"My loyal minions... today, we stand on the brink of greatness. For years, the universe has trembled before the sheer mention of my name, and yet, there are those who dare to oppose me. Millions of lightyears away from here lies a planet that you've all studied about these past several months. This planet has seen many of my most embarrassing defeats and the destruction of many of our forces thanks to its greatest champion; a boy who has secured the most ultimate power in the universe, and has chosen to use it as a mere plaything for his childish desires to do good.

"These atrocities cannot go without repent! I have spent too long and have sacrificed too much in trying to unite all of the known universe under a single banner, my banner, and I refuse to admit defeat to a backwater world who has no idea of the power that I possess. Today, we will change this.

"Today marks the day that my great crusade begins! Today marks the day that the Galactic Alliance will bend to my will, and submit all it rules to me! Today is the day that Earth will burn, that its people will die, and all who dare oppose me... will fall.

...

"FOR TODAY, BEN TENNYSON WILL DIE AND THE OMNITRIX WILL RETURN TO ITS RIGHTFUL OWNER! I, VILGAX, THE CONQUEROR OF TEN WORLDS, SHALL EMERGE VICTORIOUS ON THIS DAY ONCE AND FOR ALL!"

From his position on the command bridge, Vilgax could hear the monotone chants of the machines created to do his bidding who were onboard his ships. They repeated the same words, over and over, as it had been burned into their memory cores since their creation.

"ALL HAIL LORD VILGAX! ALL HAIL LORD VILGAX! ALL HAIL LORD VILGAX!"

Satisfied by the response given to him by his minions, Vilgax turned to face his warship's crew and barked out, "Helmsmen, set a course for Earth! It is time for my conquest to begin now!"

Without question, the Drone obeyed his master's command and began transmitting the coordinates of their destination to the ship's computer while Vilgax walked over to his command chair to take a seat for the journey ahead. As the energy cores of the Chimerian Hammer Mk. II's engines began charging up for hyperspace, Vilgax took one look out of the bridge's viewport and smirked beneath his respirator.

Prepare yourself, Ben Tennyson, the Conqueror of Ten Systems thought savagely. For I am coming for you...

So... this is unexpected. Truth be told, I've had this idea in the back of my head for awhile, but I never thought I would actually do it. Looks like I was wrong. A small part of me is nervous that this'll crash and burn quickly, but I have been called a worry-wart (as my Grandma usually tells me) so there's that biz.

Next chapter, we'll be taking a look into the "normal" lives of the heroes who I have selected to be the main cast for this story and the eventual arrival of ol' Squidface himself.

See ya next chapter!