Ben Ten Ultimate Alien All Episodes !!link!! < RELIABLE >

14. "Where the Magic Happens" 15. "Perplexahedron" 16. "The Forge of Creation" 17. "...Nor Iron Bars a Cage" 18. "The Enemy of My Enemy" 19. "Absolute Power" (Part 1) 20. "Absolute Power" (Part 2) 21. "Transmotion" 22. "The Creature from Beyond" 23. "Basic Training" 24. "It's Not Easy Being Gwen" 25. "Ben 10,000 Returns" 26. "Moonstruck"

27. "The Purge" 28. "Simian Says" 29. "Greetings from Techadon" 30. "The Flame Keepers' Circle" 31. "Double or Nothing" 32. "The Perfect Girlfriend" 33. "Ultimate Sacrifice" 34. "The Widening Gyre" 35. "The Mother of All Vreedles" 36. "A Knight to Remember" 37. "Solitary Alignment" 38. "Inspector 13" 39. "The Enemy of My Frenemy" 40. "Couples Retreat" 41. "Catch a Falling Star" 42. "The Eggman Cometh" 43. "Night of the Living Nightmare" 44. "The Beginning of the End" 45. "The Ultimate Enemy" (Parts 1 & 2 — double-length finale) ben ten ultimate alien all episodes

Season 1: The Aggregor & Ultimate Kevin Arcs (Episodes 1–20) "The Forge of Creation" 17

Ben 10: Ultimate Alien Network: Cartoon Network Air Dates: April 23, 2010 – March 31, 2012 Total Episodes: 52 (Across 2 Seasons) Sequel To: Ben 10: Alien Force Followed By: Ben 10: Omniverse "Absolute Power" (Part 1) 20

The finale sees Ben and Gwen hunting Kevin down. Ben decides he must kill Kevin to stop him ("I have to do what I have to do"). Ultimately, Gwen finds a way to cure Kevin using Dominus Librium, saving his life and his sanity.