Season
- Season 2 2011-02-04
- Season 1 2010-04-23
Episode
- Episode 1: The Transmogrification of Eunice
- Episode 2: Eye of the Beholder
- Episode 3: Viktor: The Spoils
- Episode 4: The Big Story
- Episode 5: Girl Trouble
- Episode 6: Revenge of the Swarm
- Episode 7: The Creature from Beyond
- Episode 8: Basic Training
- Episode 9: It's Not Easy Being Gwen
- Episode 10: Ben 10,000 Returns
- Episode 11: Moon Struck
- Episode 12: Prisoner #775 Is Missing
- Episode 13: The Purge
- Episode 14: Simian Says
- Episode 15: Greetings from Techadon
- Episode 16: The Flame Keeper's Circle
- Episode 17: Double or Nothing
- Episode 18: The Perfect Girlfriend
- Episode 19: The Ultimate Sacrifice
- Episode 20: The Widening Gyre
- Episode 21: The Mother of All Vreedles
- Episode 22: A Knight to Remember
- Episode 23: Solitary Alignment
- Episode 24: Inspector #13
- Episode 25: The Enemy of My Frenemy
- Episode 26: Couples Retreat
- Episode 27: Catch a Falling Star
- Episode 28: The Eggman Cometh
- Episode 29: Night of the Living Nightmare
- Episode 30: The Beginning of the End
- Episode 31: The Ultimate Enemy (1)
- Episode 32: The Ultimate Enemy (2)
Ben 10: Ultimate Alien Season 2 The Widening Gyre
With his secret identity now revealed to the world, Ben Tennyson continues to fight evil as a superhero with the help of the newly acquired Ultimatrix.
