As Ben must learn to cooperate with Rook, he has to face the arrival of Khyber, a mysterious alien hunter who set his sights on him. With Ben now alone, Max assigned him a new partner, a young Badass Normal alien plumber named Rook ( much to Ben's dismay). Eventually, Gwen decides to leave Belwood to go to college, and Kevin follows her. Ben, now equipped with his new Omnitrix, is still working for the Plumbers.
Earth has eventually been declared a free system, and the aliens now live freely amongst humans. Ben 10: Omniverse is the fourth iteration of the Ben 10 franchise following Ultimate Alien.Ī few months have passed since the events of Ultimate Alien.
