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General Episodes Pre-Production Errors

The following is a list of episodes for Ben 10: Ultimate Alien. There are a total of 52 episodes and one crossover special. Although the first 20 episodes were produced and aired as one season, they were written as two seasons of 10 episodes each.[DM 1][DM 2][DM 3][DM 4] Furthermore, Season 3 was split into Seasons 2 and 3 when aired, with several episodes airing out of order.[TJC 1][TJC 2]

This article is about the Ultimate Alien episodes in production order. You might have been looking for the U.S. airing order.
Season 1 Season 2 Season 3 Crossovers

Season 1: 2010 (Episodes 1 - 10)[]

Image Title Number Overall Overall (franchise) Original Airdate
UA01 Fame 1 1 99 April 23, 2010
Ben's secret identity is revealed to the world, and an alien refugee is about to detonate a nuclear bomb.
Duped (145) Duped 2 2 100 April 30, 2010
Under pressure from his newfound fame, Ben comes up with a plan to be at more than one place at a time.
UA03 Hit 'Em Where They Live 3 3 101 May 7, 2010
Now that Ben's secret identity is out in the open, his old enemies team up to attack his family.
VG (57) Video Games 4 4 102 May 14, 2010
Ben's celebrity lands him a starring role in his own video game.
Escape From Aggregor Escape From Aggregor 5 5 103 May 21, 2010
Five aliens from another galaxy attempt to escape from their mysterious captor.
THtH (318) Too Hot to Handle 6 6 104 May 28, 2010
A radioactive alien menace tricks Kevin into freeing him from his containment suit.
AF (360) Andreas' Fault 7 7 105 June 4, 2010
The team discovers that alien con-man Argit has somehow become the leader of the Forever Knights.
Fused (238) Fused 8 8 106 June 11, 2010
Ben is trapped in the form of his newest transformation, a form Aggregor intends to destroy.
UA09 Hero Time 9 9 107 June 18, 2010
A starstruck Ben dates a beautiful young movie actress, while his childhood hero makes a comeback.
Ultimate Aggregor Ultimate Aggregor 10 10 108 October 10, 2010
Aggregor's ultimate plan is revealed, and it's already too late to stop him!

Season 2: 2010 (Episodes 11 - 20)[]

Image Title Number Overall Overall (franchise) Original Airdate
MoI (170) Map of Infinity 1 11 109 October 10, 2010
Ben and his team travel to a bizarre half-frozen, half molten planet to prevent Aggregor from obtaining a priceless map.
Reflected Glory Reflected Glory 2 12 110 October 15, 2010
JT and Cash get in over their heads when they take credit for Ben's heroic acts.
Deep Deep 3 13 111 October 22, 2010
Ben, Kevin, and Gwen journey to the center of an all-water planet in an attempt to finally capture Aggregor.[note 1]
WtMH (98) Where the Magic Happens 4 14 112 October 29, 2010
Gwen takes the team to a dimension of magic, where their only hope of survival rests with her old foe Charmcaster.
PH (31) Perplexahedron 5 15 113 November 5, 2010
Ben, Kevin and Gwen race Aggregor through a mysterious artificial planetoid designed to destroy anyone who enters.
Mother celetialsapien The Forge of Creation 6 16 114 November 12, 2010
Professor Paradox holds the key to stopping Aggregor from tapping into the limitless power of Alien X.
NIBaC (228) ...Nor Iron Bars a Cage 7 17 115 November 19, 2010
To settle an old score, Kevin voluntarily returns to the Null Void prison he once escaped.
The Enemy of My Enemy The Enemy of My Enemy 8 18 116 December 3, 2010
Argit infiltrates the Plumbers' Academy with a plan to help the Vreedle Brothers do the last thing anyone would expect.
Kevinalan Absolute Power: Part 1 9 19 117 December 10, 2010
Ben is infuriated when Gwen asks Darkstar for his help defeating the team's deadliest, and most unlikely foe of all.
AP2 (322) Absolute Power: Part 2 10 20 118 December 10, 2010
It's Ben and company's last stand against a foe they can't bring themselves to fight!

Season 3: 2011 - 2012 (Episodes 21 - 52)[]

Image Title Number Overall Overall (franchise) Original Airdate
TToE (54) The Transmogrification of Eunice 1 21 119 February 4, 2011
The team discovers a strange alien girl with no memory but Sunder has been hired to capture her!
EotB (219) Eye of the Beholder 2 22 120 February 11, 2011
Ship's former owner, Baz-l, has been captured on a distant planet while stealing gems and Ben, Julie and the crew set out to save him.[note 2]
UA 24 The Big Story 3 23 121 March 4, 2011
When a mysterious meteor shower leaves behind an evil alien plant species, Ben 10 super-fan Jimmy steps up to save the day.
Viktor The Spoils Viktor: The Spoils 4 24 122 February 18, 2011
The return of the evil Dr. Viktor!
GT (17) Girl Trouble 5 25 123 March 11, 2011
Gwen's cousin, Sunny, pays a visit but she's more than meets the eye!
RotS (15) Revenge of the Swarm 6 26 124 March 18, 2011
When Julie is kidnapped, Ben blames Elena who swears she had nothing to do with it. But the Microchips in her lab point to the truth.[note 3]
Ben 10,000 UA Ben 10,000 Returns 7 27 125 April 15, 2011
Eon is back and it's up to an older and wiser Ben from the future to help the crew defeat him using the Hands of Armageddon to win the battle.
TCfB (220) The Creature From Beyond 8 28 126 March 25, 2011
The Forever Knights accidentally unleash an evil force! And at a Bellwood retirement home, a retired Forever Knight suddenly gets a very bad feeling.
BT (247.1) Basic Training 9 29 127 April 1, 2011
Ben and the crew are forced to go through basic training at the Plumbers' Academy. And you can just imagine how well that goes.[note 4]
INEBG (53) It's Not Easy Being Gwen 10 30 128 April 8, 2011
You think it's easy being Gwen? Well you'll have second thoughts after you check out a typical day in the not-so-typical life of Gwen Tennyson.
AU ep 32 Prisoner Number 775 is Missing 11 31 129 April 29, 2011
When old George enters Area 51 and makes the entire base disappear, Ben and the crew learn that a mysterious Prisoner 775 may be behind it all.
MS (122) Moonstruck 12 32 130 April 22, 2011
Grandpa Max reveals the story of how he met Verdona and how he eventually was recruited to become a Plumber.
Simian Says Simian Says 13 33 131 September 23, 2011
An evil Xenocite queen takes over the Arachnichimps' home planet by attaching herself to a crime lord named Mizaru.[note 5]
GfT (134) Greetings From Techadon 14 34 132 September 30, 2011
A mysterious object crashes in the center of Bellwood, unleashing Techadon robots with one thing on their mind, destroying Ben!
TP (80) The Purge 15 35 133 September 16, 2011
The Forever Knights factions have been united into one and an all-out war against the aliens on Earth erupts.
TFKC (122) The Flame Keepers' Circle 16 36 134 October 7, 2011
A fanatical group of whackos have taken to worshiping Vilgax of all people or aliens! And guess who has joined them, Julie!
Albedo Double or Nothing Double or Nothing 17 37 135 October 14, 2011
Albedo, a.k.a. Negative Ben, returns as the star of a big stage production about Ben Tennyson's life. Sure, he needs the money, but what is he really up to?[note 6]
TPGF The Perfect Girlfriend 18 38 136 October 21, 2011
When Ben finds himself in an intense battle against Ssserpent, Julie steps in and helps him defeat the slimy brute.
TUS (514) The Ultimate Sacrifice 19 39 137 October 28, 2011
Ben is suddenly NOT Ben and it's an all-out revolt as the aliens inside Ben's Ultimatrix demand their freedom.[note 7]
Ma vreedle giving birth The Mother of All Vreedles 20 40 138 November 18, 2011
Ma Vreedle returns to Earth with a cloning machine and a plan to unleash 300 billion Pretty Boy Vreedles on the planet.
TWG (352) The Widening Gyre 21 41 139 November 4, 2011
After a giant garbage-like creature appears and drags a boat down into the ocean, Ben and the crew investigate the Pacific Garbage Vortex.[note 8]
Sir George with Diagon's heart A Knight to Remember 22 42 140 December 2, 2011
Vilgax gets a hold of Old George's sword, and tries to gain Dagon's power. Big mistake! And Ben discovers a new alien hero: Eatle.[note 9]
Planets Solitary Alignment 23 43 141 December 9, 2011
Azmuth reveals how old George first got the sword and defeated Dagon, and the crew travels to the Middle Ages to learn the truth.
Ben and Techadon Weapon Master 003 Inspector #13 24 44 142 February 4, 2012
A mysterious Techadon Master visits Earth, looking for the Ultimatrix. And he turns out to be more dangerous than any Techadon ever imagined.
Ben 10 AU ep 45 Enemy of My Frenemy 25 45 143 February 11, 2012
Gwen hopes to rescue Charmcaster. When she asks Hex to join her, he refuses saying he won't join a suicide mission.
Nemesis jennifer Catch a Falling Star 26 46 144 February 25, 2012
Movie starlet Jennifer Nocturne springs the evil Captain Nemesis out of jail and the two escape and soon, Ben and Gwen are hot on their trail.
Ben 10 AU ep 48 The Eggman Cometh 27 47 145 March 3, 2012
When vicious dragons invade Bellwood, it's up to Ben and an all-new alien named Juryrigg to battle the flying demons and return the peace.[note 10]
Hope and Michael 008 Couples Retreat 28 48 146 February 18, 2012
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.
NotLN (23) Night of the Living Nightmare 29 49 147 March 10, 2012
Albedo is desperate to get his hands on the Ultimatrix and he goes to extreme measures to get it. Once he has invaded Ben's mind, all bets are off.
Heatblast Sir George Vilgax The Beginning of the End 30 50 148 March 17, 2012
As the final battle between the Forever Knights and Dagon's Esoterica heats up, Ben finds himself caught in the middle of an intergalactic showdown.
Dagon Vilgax Psyphon The Ultimate Enemy: Part 1 31 51 149 March 24, 2012
Dagon is getting closer and closer to entering our dimension thanks to an old foe.
Giganyte Supremo vs. Diagon! The Ultimate Enemy: Part 2 32 52 150 March 31, 2012
Vilgax re-emerges in his most powerful form ever! Can Ben stop him?

Crossovers[]

Image Title Original Airdate
Heroes United Opening Ben 10/Generator Rex: Heroes United November 25, 2011
When a mysterious rift appears over Manhattan, Rex is on the scene to see if there is trouble coming. However when Humungousaur comes from the clouds, Rex gets a bit more than he bargained for! Rex begins battling it out with the Vaxasaurian in Central Park, not realizing that Humungousaur is actually Ben Tennyson. Ben soon discovers he's in an alternate dimension and that he and Rex must team up to overcome their combined foes.[note 11]

Notes[]

  1. The original synopsis provided on the Cartoon Network website erroneously reads: "Ben, Kevin, and Gwen journey to the center of an all-water planet in an attempt to finally of capture Aggregor."[CN 1]
  2. The original synopsis provided on the Cartoon Network website reads: "Ship's former owner, Baz-L, has been captured on a distant planet while stealing gems and Ben, Julie and the crew set out to save him."[CN 2]
  3. The original synopsis provided on the Cartoon Network website reads: "When Julie is kidnapped, Ben blames Elena who swears she had nothing to do with it. But the nanochips in her lab point to the truth."[CN 3]
  4. The original synopsis provided on the Cartoon Network website reads: "Ben and the crew are forced to go through basic training at the Plumber's Academy. And you can just imagine how well that goes."[CN 4]
  5. The original synopsis provided on the Cartoon Network website erroneously reads: "An evil Highbreed queen takes over the Arachnachimp's home planet by attaching herself to a crime lord named Mizaru."[CN 5]
  6. The original synopsis provided on the Cartoon Network website erroneously reads: "Albedo, aka Negative Ben, returns as the star big stage production about Ben Tennyson's life. Sure he needs the money, but what is he really up to?"[CN 6]
  7. The original synopsis provided on the Cartoon Network website reads: "Ben is suddenly NOT Ben and it's an all-out revolt as the Aliens inside Ben's Ultimatrix demand their freedom."[CN 7]
  8. The original synopsis provided on the Cartoon Network website erroneously reads: "After a giant garbage-like creature appears drags a boat down into the ocean, Ben and the crew investigate the Pacific Garbage Vortex."[CN 8]
  9. The original synopsis provided on the Cartoon Network website erroneously reads: "Vilgax gets a hold of Old George's sword, and tries to gain Dagon's power. Big mistake! And Ben discovers two new alien heroes: Fasttrack and Eatle."[CN 9]
  10. The original synopsis provided on the Cartoon Network website erroneously reads: "When vicious dragons invade Bellwood, it's up to Ben and an all-new alien named Jury Rigg to battle the flying demons and return the peace."[CN 10]
  11. The original synopsis provided on the back cover of the Heroes United DVD erroneously reads: "When a mysterious rift appears over Manhattan, Rex is on the scene to see if there is trouble coming. However when Humungosaur comes from the clouds, Rex gets a bit more than he bargained for! Rex begins battling it out with the Vaxasaurian in Central Park, not realising that Humungosaur is actually Ben Tennyson. Ben soon discovers he's in an alternate dimension and that he and Rex must team up to overcome their combined foes."[merch 1]

References[]

Crew Statements[]

Dwayne McDuffie[]

T.J. Collins[]

Cartoon Network[]

Merchandise[]

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