Ben Tennyson turns from zero to hero when he chances upon a paranormal wristwatch, the omnitrix when it crashes to earth in a meteorite. Morphing him into one of 10 different alien super heroes, Ben and his voice of reason cousin Gwen make it their mission to save the would from evil, guided by the Grandpa Max, who has his own slew of supernatural stories to share. Five years have past since we last saw Ben Tennyson transforming into aliens and fighting crime. Today, he is a well adjusted 15 year old who has put away the Omnitrix to focus on his high school life. As fate would have it, Ben is once again forced to turn to the Omnitrix to help fight a new and more sinister threat –the High Breeds, DNA liens and the Forever Knights, who team up to take over the world. Life is changing for super-powered teen Ben Tennyson. His secret identity has been revealed, leaving him to battle not only evil aliens who continue to threaten the planet, but also the down-side of international superstardom. Armed with a mysterious new watch-like device, the Ultimatrix, Ben must learn to master its full powers as it gives him the ability to activate ultimateversions of some of the strongest alien entities.