When the Omnitrix unexpectedly transforms into self-destruct mode and seeks to destroy Ben and everything in sight, Bens typical day turns into a race across the galaxy to locate the Omnitrix s creator. Luckily for Ben, the Omnitrix sends out a signal that reaches the Diamondhead alien, Tetrax. Tetrax comes to Earth to help Ben find the watchs creator Azmuth, so they can stop the Omnitrix from self-destructing. As Ben and Tetrax travel through space, Ben must fight off Viletly stowed aboard the spaceship.