Ben is a typical ten-year-old boy who loves playing video games, collecting “Sumo Slammer” cards, and annoying his cousin Gwen. Oh, and he also has the Omnitrix, an alien machine that temporarily turns Ben into one of several super powered alien heroes. But after an entire summer of alien hero adventures, Ben is now back to the mundane world of home, school, family and chores
Ten-year-old BEN TENNYSON is finally back from his summer vacation… and his life is mess! Humiliated by his teacher, harassed by bullies, grounded by his parents, upstaged by his cousin, and cursed with a malfunctioning Omnitrix that’s vaporizing his homework, Ben finally gets the opportunity to “get away from it all” when his alien buddy TETRAX (from Ben 10: Secret of the Omnitrix) offers him the chance of a lifetime: to step up his Omnitrix hero training with a “total alien emersion program” on the far side of the galaxy. But what Ben comes to realize is that “total alien immersion” means he can’t turn human again! Crashing back to Earth and stuck in his alien forms, Ben soon encounters a deadly MECHAMORPH – just like Ben’s UPGRADE alien, but armed with explosive high-tech armor and a single-minded goal to DESTROY ALL ALIENS! As GRANDPA MAX, GWEN and Tetrax race to track him down, Ben’s battle with the Mechamorph takes them to the OMNIVERSE – a strange world that exists within the Omnitrix itself – and a deadly battle with an evil version of Ben’s most powerful alien of all: the hundred-foot-tall WAY BIG! But little does Ben know that neither the Mechamorph nor the Evil Way Big are exactly what they seem... 