Ben Tennyson falls through a wormhole and encounters Rex. The two heroes must unite against a foe that can absorb their powers.
Did You Know?
Wilhelm Scream: Providence Agent as Alpha throws him out of a jump jet. See more
[explaining about his watch
It's called the Ultimatrix. It has the DNA of a million aliens.
Right. Aliens. And leprechauns gave me these goggles.
References Ben 10: Ultimate Alien