Introduces Professor Paradox, the time-traveling genius. It expands the show’s lore into the multiverse and temporal mechanics.
The Plumber's Helpers (the rookie team Ben trained) are sent to a space station to stop a "rogue" Ben Tennyson who seems to have gone evil. ben 10 alien force all episodes top
(Season 3, Part 2) : . The series finale where Ben faces Vilgax without the Omnitrix, leading into the Ultimate Alien series. Alone Together Introduces Professor Paradox, the time-traveling genius