Poster of Episodes in Ben 10 Ultimate Alien - Season 1 - Season 1

Ben 10 Ultimate Alien - Season 1

First Episode Aired On:
Friday, April 23 2010
15 years ago
Last Episode Aired On:
Friday, December 10 2010
14 years ago
Number of Episodes: 20
Genres: Animation, Action & Adventure, Sci-Fi & Fantasy, Kids