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A one hour crossover episode between Ben 10: Ultimate Alien and Generator Rex in which Ben Tennyson accidentally travels to Rex Salazar's dimension. After quarrels with each other, the two finally work together to stop a threat once created by Rex's brother, the Alpha Nanite (Michael Emerson).
Computer-animated film that premiered on Cartoon Network Asia on March 11, 2012. Taking place shortly after the events of Ben 10, Ben, Gwen and Grandpa Max spend their evenings fighting aliens on the streets of Bellwood.
