The UAF Era (or Ultimate Alien Force Era) is everything that takes place during Alien Force and Ultimate Alien.
AF Season 1 Episodes 1-2 Ben 10 Returns - Thursday March 3, 2011-Friday March 4, 2011
AF Season 1 Episode 3 Everybody Talks About the Weather - Saturday March 5, 2011
AF Season 1 Episode 4 Kevin’s Big Score - Thursday March 10, 2011-Friday March 11, 2011
AF Season 1 Episode 5 All That Glitters - Saturday March 12, 2011
AF Season 1 Episode 7 Pier Pressure - Tuesday March 15, 2011-Thursday March 17, 2011
AF Season 1 Episode 6 Max Out - Saturday March 26, 2011-Sunday March 27, 2011
AF Season 1 Episode 11 Be-Knighted - Friday April 1, 2011-Saturday April 2, 2011
AF Season 1 Episode 8 What Are Little Girls Made Of? - Friday April 8, 2011-Sunday April 10, 2011
AF Season 1 Episode 9 The Gauntlet - Friday April 15, 2011-Saturday April 16, 2011
AF Season 1 Episode 12 Plumbers’ Helpers - Wednesday April 20, 2011
AF Season 1 Episode 10 Paradox - Friday April 22, 2011
AF Season 1 Episode 13 X=Ben+2 - Saturday April 23, 2011
OV Season 2 Episode 10 Special Delivery (flashback) - Sunday April 24, 2011
AF Season 2 Episode 1 Darkstar Rising - Monday April 25, 2011-Tuesday April 26, 2011
AF Season 2 Episode 2 Alone Together - Friday April 29, 2011-Saturday April 30, 2011
AF Season 2 Episode 3 Good Copy, Bad Copy - Tuesday May 3, 2011-Wednesday May 4, 2011
AF Season 2 Episode 4 Save the Last Dance - Wednesday May 11, 2011-Friday May 13, 2011
AF Season 2 Episode 5 Undercover - Tuesday May 17, 2011
AF Season 2 Episode 6 Pet Project - Saturday May 21, 2011-Sunday May 22, 2011
AF Season 2 Episode 7 Grounded - Wednesday May 25, 2011
AF Season 2 Episode 8 Voided - Saturday May 28, 2011
AF Season 2 Episode 9 Inside Man - Monday May 30, 2011
AF Season 2 Episode 10 Birds of a Feather - Wednesday June 1, 2011
AF Season 2 Episode 11 Unearthed - Friday June 3, 2011-Saturday June 4, 2011
AF Season 2 Episodes 12-13 War of the Worlds - Monday June 6, 2011-Tuesday June 7, 2011
Alien Swarm - Wednesday August 24, 2011-Thursday August 25, 2011
AF Season 3 Episodes 1-2 Vengeance of Vilgax - Sunday September 4, 2011-Monday September 5, 2011
AF Season 3 Episode 3 Inferno - Friday September 9, 2011
AF Season 3 Episode 4 Fool’s Gold - Thursday September 15, 2011-Friday September 16, 2011
AF Season 3 Episode 5 Simple - Friday September 23, 2011-Sunday September 25, 2011
AF Season 3 Episode 6 Vreedle, Vreedle - Tuesday September 27, 2011
AF Season 3 Episode 7 Singlehanded - Thursday September 29, 2011
AF Season 3 Episode 8 If All Else Fails - Saturday October 1, 2011-Sunday October 2, 2011
AF Season 3 Episode 9 In Charm’s Way - Friday October 7, 2011-Saturday October 8, 2011
AF Season 3 Episode 10 Ghost Town - Friday October 14, 2011
AF Season 3 Episode 11 Trade-Off - Wednesday October 19, 2011-Thursday October 20, 2011
AF Season 3 Episode 12 Busy Box - Wednesday October 26, 2011
AF Season 3 Episode 13 Con of Rath - Saturday October 29, 2011
AF Season 3 Episode 14 Primus - Friday November 4, 2011
AF Season 3 Episode 15 Time Heals - Saturday November 12, 2011-Sunday November 13, 2011
AF Season 3 Episode 16 The Secret of Chromastone - Saturday November 19, 2011
AF Season 3 Episode 17 Above and Beyond - Sunday November 27, 2011
AF Season 3 Episode 18 Vendetta - Wednesday December 7, 2011-Thursday December 8, 2011
AF Season 3 Episodes 19-20 The Final Battle - Saturday December 17, 2011-Sunday December 18, 2011
UA Season 1 Episode 1 Fame - Sunday January 8, 2012-Monday January 9, 2012
UA Season 1 Episode 2 Duped - Friday January 13, 2012
UA Season 1 Episode 3 Hit Em Where They Live - Friday January 13, 2012-Saturday January 14, 2012
UA Season 1 Episode 4 Video Games - Sunday January 15, 2012-Wednesday January 18, 2012
UA Season 1 Episode 5 Escape From Aggregor - Saturday January 21, 2012
UA Season 1 Episode 6 Too Hot to Handle - Sunday January 22, 2012
UA Season 1 Episode 7 Andreas’ Fault - Monday January 23, 2012
UA Season 1 Episode 8 Fused - Tuesday January 24, 2012-Wednesday January 25, 2012
UA Season 1 Episode 9 Hero Time - Thursday January 26, 2012-Friday January 27, 2012
UA Season 1 Episode 10 Ultimate Aggregor - Sunday January 29, 2012
UA Season 1 Episode 11 The Map of Infinity - Sunday January 29, 2012
UA Season 1 Episode 12 Reflected Glory - Monday January 30, 2012
UA Season 1 Episode 13 Deep - Tuesday January 31, 2012
UA Season 1 Episode 14 Where the Magic Happens - Wednesday February 1, 2012
UA Season 1 Episode 15 Perplexahedron - Wednesday February 1, 2012
UA Season 1 Episode 16 The Forge of Creation - Wednesday February 1, 2012
UA Season 1 Episode 17 Nor Iron Bars a Cage - Wednesday February 8, 2012
UA Season 1 Episode 18 The Enemy of my Enemy - Thursday February 9, 2012
UA Season 1 Episodes 19-20 Absolute Power - Saturday February 11, 2012
UA Season 2 Episode 1 The Transmogrification of Eunice - Saturday May 14, 2012
UA Season 2 Episode 2 Eye of the Beholder - Wednesday May 16, 2012
UA Season 2 Episode 3 Viktor: The Spoils - Saturday May 19, 2012
UA Season 2 Episode 4 The Big Story - Thursday May 24, 2012-Friday May 25, 2012
UA Season 2 Episode 5 Girl Trouble - Saturday May 26, 2012
UA Season 2 Episode 6 Revenge of the Swarm - Tuesday May 29, 2012-Wednesday May 30, 2012
UA Season 2 Episode 7 The Creature From Beyond - Thursday May 31, 2012
UA Season 2 Episode 8 Basic Training - Friday June 1, 2012-Saturday June 9, 2012
UA Season 2 Episode 9 It’s Not Easy Being Gwen - Monday June 11, 2012
UA Season 2 Episode 10 Ben 10,000 Returns - Friday June 15, 2012
UA Season 2 Episode 11 Moonstruck - Saturday June 16, 2012
UA Season 2 Episode 12 Prisoner Number 775 Is Missing - Sunday June 17, 2012
Heroes United - Wednesday June 20, 2012
UA Season 3 Episode 1 The Purge - Wednesday June 27, 2012-Thursday June 28, 2012
UA Season 3 Episode 2 Simian Says - Saturday June 30, 2012-Sunday July 1, 2012
UA Season 3 Episode 3 Greetings From Techadon - Monday July 2, 2012
UA Season 3 Episode 4 The Flame Keepers’ Circle - Tuesday July 3, 2012-Wednesday July 4, 2012
UA Season 3 Episode 5 Double or Nothing - Wednesday July 4, 2012-Thursday July 5, 2012
UA Season 3 Episode 6 The Perfect Girlfriend - Thursday July 5, 2012-Saturday July 7, 2012
UA Season 3 Episode 7 The Ultimate Sacrifice - Sunday July 8, 2012
UA Season 3 Episode 8 The Widening Gyre - Monday July 9, 2012-Tuesday July 10, 2012
UA Season 3 Episode 9 The Mother of All Vreedles - Wednesday July 11, 2012
UA Season 3 Episode 10 A Knight to Remember - Thursday July 12, 2012
UA Season 3 Episode 11 Solitary Alignment - Thursday July 12, 2012
UA Season 3 Episode 12 Inspector 13 - Friday July 13, 2012-Saturday July 14, 2012
UA Season 3 Episode 13 Enemy of My Frenemy - Sunday July 15, 2012-Monday June 16, 2012
UA Season 3 Episode 14 Couples Retreat - Tuesday July 17, 2012
UA Season 3 Episode 15 Catch a Falling Star - Wednesday July 18, 2012
UA Season 3 Episode 16 The Eggman Cometh - Thursday July 19, 2012-Friday July 20, 2012
UA Season 3 Episode 17 Night of the Living Nightmare - Saturday July 21, 2012
UA Season 3 Episode 18 The Beginning of the End - Thursday July 26, 2012
UA Season 3 Episodes 19-20 The Ultimate Enemy - Thursday July 26, 2012