When Ben Tennyson comes across an alien device known as the Omnitrix, It attaches itself to Ben, allowing him to become a hero known As Ben 10, but an alien being known as Vilgax wants the Omnitrix for his own, allowing him to create an evil army that could very well help him rule the Galaxy. So Ben has to fight Vilgax, with the help of his grandfather, cousin, and close friend Johnny Bravo
