After being healed from injuries sustained in the pilot episode, grows tired of his drones' failures and decides to capture the Omnitrix himself. He begins a massive assault on Earth, forcing the Tennyson family into a direct confrontation.
Depending on which Ben 10 series you are referring to, the 13th episode of the first season varies: Ben 10: 1Г—13
: The Tennyson family manages to defeat Vilgax, seemingly destroying his ship with him inside, though he remains a recurring threat throughout the series. Thematic Significance After being healed from injuries sustained in the