Ben 10: Ultimate Alien is an American animated television series - the third incarnation of Cartoon Network's Ben 10 franchise. It was slated to premiere after the series finale of Ben 10: Alien Force, which was on March 26, 2010. The show itself aired on April 23, 2010 in the US and in the UK and Latin America on October 10, 2010 at 10am (10/10/10). The plot follows on from the Ben 10: Alien Force, set a few weeks after the events of Ben 10: Alien Force, the original Omnitrix being destroyed, Ben, now being 16 years old, must now master the Ultimatrix. Before the title was announced, the show went under the working title of Ben 10: Evolution.