Ben 10: Ultimate Alien

Ben 10: Ultimate Alien is an American animated television series from the creative group Man of Action, produced by Cartoon Network Studios and distributed by Warner Bros. Domestic Television. It follows directly after *Ben 10: Alien Force* (2008–2010) and stands as the third show in the Ben 10 franchise. The show first aired on Cartoon Network in the United States on April 23, 2010. In India and Latin America, it debuted on October 10, 2010, while Canadian viewers saw it starting September 12, 2010, on Teletoon. The final episode, a two-part story called "The Ultimate Enemy," aired on March 31, 2012, and was dedicated to the memory of series developer, writer, and producer Dwayne McDuffie, who passed away during production. A follow-up series, *Ben 10: Omniverse*, began in August 2012.

The plot picks up a few weeks after *Ben 10: Alien Force* ends. With the Prototype Omnitrix destroyed, sixteen-year-old Ben Tennyson has to master the Ultimatrix, a modified version of the Omnitrix that can evolve his alien forms into stronger versions called "Ultimates." The story kicks off when young internet conspiracy theorist J. Jonah "Jimmy" Jones exposes Ben’s secret identity by tracking alien sightings in Bellwood. This revelation splits public opinion: younger fans adore him, while adults—especially news anchor Will Harangue—call him a menace. Ben now juggles fighting evil with his cousin Gwen Tennyson and best friend Kevin Levin, while also dealing with the challenges of sudden fame.

The first season centers on an Osmosian villain named Aggregor, who kidnaps five powerful aliens from the Andromeda Galaxy to steal their powers. Despite Ben’s team trying to stop him, Aggregor absorbs the aliens and becomes nearly unstoppable. Ben learns from Azmuth, creator of both the Prototype Omnitrix and the Ultimatrix, that Aggregor seeks the Map of Infinity—a map of spacetime leading to the Forge of Creation. There, Aggregor plans to steal the powers of an infant Celestialsapien, a godlike species that can manipulate reality and time. Aggregor reaches the Forge, and the team follows. Kevin, as a last resort, absorbs the Ultimatrix’s powers to defeat Aggregor, but the overload drives Kevin insane with a thirst for more power.