The first season of Ben 10: Alien Force consists of 26 episodes and introduces the new main characters, including Ben Tennyson (voiced by Yuri Lowenthal), Kevin Martin (voiced by Graham Phillips), and Gwen Tennyson (voiced by Laura Bailey).
— The Incursean Emperor threatens to destroy Earth unless his kidnapped daughter Attea is returned. During the rescue, a dam breaks, and Ben transforms into the untested Alien X to stop the flood. Though Alien X can warp reality, Ben finds himself trapped in endless debate with its two other personalities, Bellicus and Serena. Only after convincing Serena to let him transform back into Swampfire does Ben resume the fight and save Earth. Omnitrix debut: Alien X.
Season 3 aired from to March 26, 2010 , shifting focus away from the defeated Highbreed to a mix of standalone adventures and the return of classic villains. The season is 20 episodes long , the longest of the three seasons.
Ben 10: Alien Force shifted the franchise into a more mature, serialized direction, following a 15-year-old Ben Tennyson as he takes up the Omnitrix once again to stop a clandestine alien invasion. The series consists of spanning three seasons, originally airing between 2008 and 2010. all ben 10 alien force episodes
Set five years after the original series, Ben 10: Alien Force
Ben unlocks Alien X, his most powerful form, to stop an alien emperor. Season 2: The War of the Worlds
Ben helps a "prince" retrieve a power source. The first season of Ben 10: Alien Force
: A Highbreed failsafe—a giant plant monster—is accidentally activated. In Charm's Way : Charmcaster returns to steal Gwen's magical mana. Ghost Town
The first 13 episodes establish a new dynamic as Ben teams up with his cousin Gwen and former rival Kevin Levin. Ben 10 Returns (Parts 1 & 2):
46 episodes (approx. 22 minutes each)
The 46 episodes form several major story arcs that build upon each other to create a compelling narrative.
Ben enters the Null Void to stop a dictator named D'Void.
: The Highbreed invade Earth; Ben uses the Omnitrix to repair the Highbreed's genetic damage. Though Alien X can warp reality, Ben finds
(S2E5, Nov 14, 2008) – Cooper, a young tech genius, is kidnapped by DNAliens and forced to build a mysterious device. The team must rescue him and destroy the base.