TV Ben 10: Ultimate Alien - Season 2 Episode 26 : Couples Retreat Ben 10: Ultimate Alien - Season 2 Episode 26 : Couples Retreat 8.2/10 by 865 users After Darkstar opens the Door to Anywhere, Charmcaster comes through, and the two team up to give Ben, Gwen, and Kevin the fight of a lifetime. Details Casts Posters Images Title Ben 10: Ultimate Alien - Season 2 Episode 26 : Couples Retreat Alternative Titles 少年骇客：终极英雄, ベン10 アルティメットエイリアン, Ben 10：終極英雄, Ben 10: Evolution First Air Date 2010-04-23 Last Air Date 2012-03-31 Number of Episodes 52 Number of Seasons 2 Genres Animation, Action & Adventure, Sci-Fi & Fantasy, Kids, Networks Cartoon Network, Casts Yuri Lowenthal, Ashley Johnson, Greg Cipes, Dee Bradley Baker Plot Keywords , Ben Tennyson (voice) Yuri Lowenthal Gwen Tennyson (voice) Ashley Johnson Kevin Levin (voice) Greg Cipes Humungosaur (voice) Dee Bradley Baker Episodes List Ben 10: Ultimate Alien Season 2 :Episode 1 The Transmogrification of Eunice The Transmogrification of Eunice 2011-02-04 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... Ben 10: Ultimate Alien Season 2 :Episode 2 Eye of the Beholder Eye of the Beholder 2011-02-11 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... Ben 10: Ultimate Alien Season 2 :Episode 3 Viktor: The Spoils Viktor: The Spoils 2011-02-18 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... Ben 10: Ultimate Alien Season 2 :Episode 4 The Big Story The Big Story 2011-03-04 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... Ben 10: Ultimate Alien Season 2 :Episode 5 Girl Trouble Girl Trouble 2011-03-11 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... Ben 10: Ultimate Alien Season 2 :Episode 6 Revenge of the Swarm Revenge of the Swarm 2011-03-18 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... Ben 10: Ultimate Alien Season 2 :Episode 7 The Creature from Beyond The Creature from Beyond 2011-03-25 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... Ben 10: Ultimate Alien Season 2 :Episode 8 Basic Training Basic Training 2011-04-01 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... Ben 10: Ultimate Alien Season 2 :Episode 9 It's Not Easy Being Gwen It's Not Easy Being Gwen 2011-04-08 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... Ben 10: Ultimate Alien Season 2 :Episode 10 Ben 10,000 Returns Ben 10,000 Returns 2011-04-15 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... Ben 10: Ultimate Alien Season 2 :Episode 11 Moon Struck Moon Struck 2011-04-22 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... Ben 10: Ultimate Alien Season 2 :Episode 12 Prisoner #775 Is Missing Prisoner #775 Is Missing 2011-04-29 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... Ben 10: Ultimate Alien Season 2 :Episode 13 The Purge The Purge 2011-09-16 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... Ben 10: Ultimate Alien Season 2 :Episode 14 Simian Says Simian Says 2011-09-23 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... Ben 10: Ultimate Alien Season 2 :Episode 15 Greetings from Techadon Greetings from Techadon 2011-09-30 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... Ben 10: Ultimate Alien Season 2 :Episode 16 The Flame Keeper's Circle The Flame Keeper's Circle 2011-10-07 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... Ben 10: Ultimate Alien Season 2 :Episode 17 Double or Nothing Double or Nothing 2011-10-14 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... Ben 10: Ultimate Alien Season 2 :Episode 18 The Perfect Girlfriend The Perfect Girlfriend 2011-10-21 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... Ben 10: Ultimate Alien Season 2 :Episode 19 The Ultimate Sacrifice The Ultimate Sacrifice 2011-10-28 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... Ben 10: Ultimate Alien Season 2 :Episode 20 The Widening Gyre The Widening Gyre 2011-11-04 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... Ben 10: Ultimate Alien Season 2 :Episode 21 The Mother of All Vreedles The Mother of All Vreedles 2011-11-18 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... Ben 10: Ultimate Alien Season 2 :Episode 22 A Knight to Remember A Knight to Remember 2011-12-02 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... Ben 10: Ultimate Alien Season 2 :Episode 23 Solitary Alignment Solitary Alignment 2011-12-09 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... Ben 10: Ultimate Alien Season 2 :Episode 24 Inspector #13 Inspector #13 2012-02-04 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... Ben 10: Ultimate Alien Season 2 :Episode 25 The Enemy of My Frenemy The Enemy of My Frenemy 2012-02-11 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... Ben 10: Ultimate Alien Season 2 :Episode 26 Couples Retreat Couples Retreat 2012-02-18 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... Ben 10: Ultimate Alien Season 2 :Episode 27 Catch a Falling Star Catch a Falling Star 2012-02-25 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... Ben 10: Ultimate Alien Season 2 :Episode 28 The Eggman Cometh The Eggman Cometh 2012-03-03 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... Ben 10: Ultimate Alien Season 2 :Episode 29 Night of the Living Nightmare Night of the Living Nightmare 2012-03-10 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... Ben 10: Ultimate Alien Season 2 :Episode 30 The Beginning of the End The Beginning of the End 2012-03-17 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... Ben 10: Ultimate Alien Season 2 :Episode 31 The Ultimate Enemy (1) The Ultimate Enemy (1) 2012-03-24 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... Ben 10: Ultimate Alien Season 2 :Episode 32 The Ultimate Enemy (2) The Ultimate Enemy (2) 2012-03-31 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...