Tetrax returns to help Ben (voice of Tara Strong) find Azmuth, the creator of the Omnitrix, after the watch changes to self-destruct mode. On their mission, they also must deal with Vilgax and his cronies as well as Gwen, who snuck aboard Tetrax's ship when it left Earth. Other voices include Meagan Smith, Paul Eiding and Steve Blum.