Ben 10: Ultimate Alien

Ben 10: Ultimate Alien is the sequel to the 2008 series, Ben 10: Alien Force, and the threequel to the 2005 Ben 10. It started airing on April 23, 2010 and concluding on March 31, 2012. It is set 1 year after Ben 10: Alien Force. It is based on Ben Tennyson, now 16 dealing with his new Ultimatrix. Gwen Tennyson and Kevin Levin are going steady. Max Tennyson is reintroduced. Ben now has the ability to become Ultimate Aliens which are stronger and more powerful. It was succeeded by Ben 10: Omniverse.