Ben 10: Ultimate Alien official wallpaper
Ben 10: Ultimate Alien poster

Ben 10: Ultimate Alien

(2010)

Seasons

Ben 10: Ultimate Alien Season 1 poster

Season 1 (2010)

with 20 episodes premiered on April 23, 2010

Ben 10: Ultimate Alien Season 2 poster

Season 2 (2011)

with 32 episodes premiered on February 4, 2011