Season 2 Episode
- Season 2 The Transmogrification of Eunice
- Season 2 Eye of the Beholder
- Season 2 Viktor: The Spoils
- Season 2 The Big Story
- Season 2 Girl Trouble
- Season 2 Revenge of the Swarm
- Season 2 The Creature from Beyond
- Season 2 Basic Training
- Season 2 It's Not Easy Being Gwen
- Season 2 Ben 10,000 Returns
- Season 2 Moon Struck
- Season 2 Prisoner #775 Is Missing
- Season 2 The Purge
- Season 2 Simian Says
- Season 2 Greetings from Techadon
- Season 2 The Flame Keeper's Circle
- Season 2 Double or Nothing
- Season 2 The Perfect Girlfriend
- Season 2 The Ultimate Sacrifice
- Season 2 The Widening Gyre
- Season 2 The Mother of All Vreedles
- Season 2 A Knight to Remember
- Season 2 Solitary Alignment
- Season 2 Inspector #13
- Season 2 The Enemy of My Frenemy
- Season 2 Couples Retreat
- Season 2 Catch a Falling Star
- Season 2 The Eggman Cometh
- Season 2 Night of the Living Nightmare
- Season 2 The Beginning of the End
- Season 2 The Ultimate Enemy (1)
- Season 2 The Ultimate Enemy (2)
Ben 10: Ultimate Alien - Season 2 Episode 1 The Transmogrification of Eunice
8.21 23 minutes A mysterious alien girl named Eunice has no memory and is being hunted by Sunder. While evading Sunder, Ben soon discovers that Eunice has nature-based abilities.
