ÉPISODE: When two robbers try to rob a gas station mart, Ben decides to turn into Four Arms to stop them. However, when he tries to activate the Omnitrix, it seems to be missing from his wrist. To make the situation more confusing, Grandpa Max and Gwen seem to have no knowledge of the summer they've spent together so far. It turns out that it's the first day of their vacation. Ben discovers that he has traveled back in time, and he decides to get the Omnitrix again. When he arrives at the crash, though, Gwen was able to get there first and obtain the device. Gwen has more control over the Omnitrix than Ben did. Can Ben find a way out of this alternate reality, and get things back the way they were?

First premiering in January 2006, Ben 10 is a Cartoon Network Original Animation Series that finds our hero, 10-year-old Ben Tennyson, discovering an alien "Omnitrix" watch that allows him the ability to transform into any one of ten alien superheroes! With the help of his Grandpa Max and "dweeb" cousin Gwen, Ben defeats his arch-nemesis Vilgax in the "Secret of the Omnitrix" movie special, leaving the planet earth safe from evil alien threats. In "Ben 10: Alien Force" (premiered April 2008), our hero is now fifteen years old and must once again use the Omnitrix to protect the earth from a new, sinister alien conspiracy that threatens to conquer the entire universe! This time around he has the help of not only his cousin Gwen (who is learning to master alien powers of her own), but his old nemesis Kevin Levin. Together, our trio of heroes span the globe (and galaxy!) to protect the earth from threats as they arise. Picking up immediately where "Ben 10: Alien Force" leaves off, "Ben 10: Ultimate Alien" (premiering April 2010) follows the now 16-year-old Ben as his life changes in major ways! The Omnitrix has been destroyed and Ben must now learn to master the secrets of the mysterious Ultimatrix, a new watch-like device that not only allows him to transform into a variety of alien super heroes, but also gives him the ability to activate evolved (or "ultimate") versions of some of his most powerful alien entities! That's only half of the changes in store for our hero, as a young savvy fanboy discovers Ben's secret identity and reveals it to the world! Faced with newfound stardom, Ben must deal with obsessive fans and skeptics who view him as a nuisance. With Gwen and Kevin still at his side, Ben continues his battle against incredible alien threats to the galaxy!

Dee Bradley Baker

Stinkfly

Dee Bradley Baker

Wildmutt

Fred Tatasciore

Ripjaw

Jim Ward

XLR8

Jim Ward

Diamondhead

Meagan Smith

Gwen Tennyson

Paul Eiding

Grandpa Max

Richard McGonagle

Four Arms

Richard Steven Horvitz

Grey Matter

Steve Blum

Heat Blast