Ben 10: Ultimate Alien/Episodes

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. Furthermore, Season 3 was split into Seasons 2 and 3 when aired, with several episodes airing out of order.
Season 1	Season 2	Season 3	Crossovers
==Season 1: 2010 (Episodes 1 - 10)==
Image	Title 	Number 	Overall 	Overall (franchise) 	Original Airdate
 	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.	Ben's secret identity is revealed to the world, and an alien refugee is about to detonate a nuclear bomb.	Ben's secret identity is revealed to the world, and an alien refugee is about to detonate a nuclear bomb.	Ben's secret identity is revealed to the world, and an alien refugee is about to detonate a nuclear bomb.	Ben's secret identity is revealed to the world, and an alien refugee is about to detonate a nuclear bomb.
 	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. 	Under pressure from his newfound fame, Ben comes up with a plan to be at more than one place at a time. 	Under pressure from his newfound fame, Ben comes up with a plan to be at more than one place at a time. 	Under pressure from his newfound fame, Ben comes up with a plan to be at more than one place at a time. 	Under pressure from his newfound fame, Ben comes up with a plan to be at more than one place at a time.
 	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. 	Now that Ben's secret identity is out in the open, his old enemies team up to attack his family. 	Now that Ben's secret identity is out in the open, his old enemies team up to attack his family. 	Now that Ben's secret identity is out in the open, his old enemies team up to attack his family. 	Now that Ben's secret identity is out in the open, his old enemies team up to attack his family.
 	Video Games 	4 	4 	102 	May 14, 2010
 	Ben's celebrity lands him a starring role in his own video game. 	Ben's celebrity lands him a starring role in his own video game. 	Ben's celebrity lands him a starring role in his own video game. 	Ben's celebrity lands him a starring role in his own video game. 	Ben's celebrity lands him a starring role in his own video game.
 	Escape From Aggregor 	5 	5 	103 	May 21, 2010
 	Five aliens from another galaxy attempt to escape from their mysterious captor. 	Five aliens from another galaxy attempt to escape from their mysterious captor. 	Five aliens from another galaxy attempt to escape from their mysterious captor. 	Five aliens from another galaxy attempt to escape from their mysterious captor. 	Five aliens from another galaxy attempt to escape from their mysterious captor.
 	Too Hot to Handle 	6 	6 	104 	May 28, 2010
 	A radioactive alien menace tricks Kevin into freeing him from his containment suit. 	A radioactive alien menace tricks Kevin into freeing him from his containment suit. 	A radioactive alien menace tricks Kevin into freeing him from his containment suit. 	A radioactive alien menace tricks Kevin into freeing him from his containment suit. 	A radioactive alien menace tricks Kevin into freeing him from his containment suit.
 	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. 	The team discovers that alien con-man Argit has somehow become the leader of the Forever Knights. 	The team discovers that alien con-man Argit has somehow become the leader of the Forever Knights. 	The team discovers that alien con-man Argit has somehow become the leader of the Forever Knights. 	The team discovers that alien con-man Argit has somehow become the leader of the Forever Knights.
 	Fused 	8 	8 	106 	June 11, 2010
 	Ben is trapped in the form of his newest transformation, a form Aggregor intends to destroy. 	Ben is trapped in the form of his newest transformation, a form Aggregor intends to destroy. 	Ben is trapped in the form of his newest transformation, a form Aggregor intends to destroy. 	Ben is trapped in the form of his newest transformation, a form Aggregor intends to destroy. 	Ben is trapped in the form of his newest transformation, a form Aggregor intends to destroy.
 	Hero Time 	9 	9 	107 	June 18, 2010
 	A starstruck Ben dates a beautiful young movie actress, while his childhood hero makes a comeback. 	A starstruck Ben dates a beautiful young movie actress, while his childhood hero makes a comeback. 	A starstruck Ben dates a beautiful young movie actress, while his childhood hero makes a comeback. 	A starstruck Ben dates a beautiful young movie actress, while his childhood hero makes a comeback. 	A starstruck Ben dates a beautiful young movie actress, while his childhood hero makes a comeback.
 	Ultimate Aggregor 	10 	10 	108 	October 10, 2010
 	Aggregor's ultimate plan is revealed, and it's already too late to stop him! 	Aggregor's ultimate plan is revealed, and it's already too late to stop him! 	Aggregor's ultimate plan is revealed, and it's already too late to stop him! 	Aggregor's ultimate plan is revealed, and it's already too late to stop him! 	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
 	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.	Ben and his team travel to a bizarre half-frozen, half molten planet to prevent Aggregor from obtaining a priceless map.	Ben and his team travel to a bizarre half-frozen, half molten planet to prevent Aggregor from obtaining a priceless map.	Ben and his team travel to a bizarre half-frozen, half molten planet to prevent Aggregor from obtaining a priceless map.	Ben and his team travel to a bizarre half-frozen, half molten planet to prevent Aggregor from obtaining a priceless map.
 	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. 	JT and Cash get in over their heads when they take credit for Ben's heroic acts. 	JT and Cash get in over their heads when they take credit for Ben's heroic acts. 	JT and Cash get in over their heads when they take credit for Ben's heroic acts. 	JT and Cash get in over their heads when they take credit for Ben's heroic acts.
 	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. 	Ben, Kevin, and Gwen journey to the center of an all-water planet in an attempt to finally capture Aggregor. 	Ben, Kevin, and Gwen journey to the center of an all-water planet in an attempt to finally capture Aggregor. 	Ben, Kevin, and Gwen journey to the center of an all-water planet in an attempt to finally capture Aggregor. 	Ben, Kevin, and Gwen journey to the center of an all-water planet in an attempt to finally capture Aggregor.
 	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. 	Gwen takes the team to a dimension of magic, where their only hope of survival rests with her old foe Charmcaster. 	Gwen takes the team to a dimension of magic, where their only hope of survival rests with her old foe Charmcaster. 	Gwen takes the team to a dimension of magic, where their only hope of survival rests with her old foe Charmcaster. 	Gwen takes the team to a dimension of magic, where their only hope of survival rests with her old foe Charmcaster.
 	Perplexahedron 	5 	15 	113 	November 5, 2010
 	Ben, Kevin and Gwen race Aggregor through a mysterious artificial planetoid designed to destroy anyone who enters. 	Ben, Kevin and Gwen race Aggregor through a mysterious artificial planetoid designed to destroy anyone who enters. 	Ben, Kevin and Gwen race Aggregor through a mysterious artificial planetoid designed to destroy anyone who enters. 	Ben, Kevin and Gwen race Aggregor through a mysterious artificial planetoid designed to destroy anyone who enters. 	Ben, Kevin and Gwen race Aggregor through a mysterious artificial planetoid designed to destroy anyone who enters.
170px	The Forge of Creation 	6 	16 	114 	November 12, 2010
170px	Professor Paradox holds the key to stopping Aggregor from tapping into the limitless power of Alien X. 	Professor Paradox holds the key to stopping Aggregor from tapping into the limitless power of Alien X. 	Professor Paradox holds the key to stopping Aggregor from tapping into the limitless power of Alien X. 	Professor Paradox holds the key to stopping Aggregor from tapping into the limitless power of Alien X. 	Professor Paradox holds the key to stopping Aggregor from tapping into the limitless power of Alien X.
 	...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. 	To settle an old score, Kevin voluntarily returns to the Null Void prison he once escaped. 	To settle an old score, Kevin voluntarily returns to the Null Void prison he once escaped. 	To settle an old score, Kevin voluntarily returns to the Null Void prison he once escaped. 	To settle an old score, Kevin voluntarily returns to the Null Void prison he once escaped.
 	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. 	Argit infiltrates the Plumbers' Academy with a plan to help the Vreedle Brothers do the last thing anyone would expect. 	Argit infiltrates the Plumbers' Academy with a plan to help the Vreedle Brothers do the last thing anyone would expect. 	Argit infiltrates the Plumbers' Academy with a plan to help the Vreedle Brothers do the last thing anyone would expect. 	Argit infiltrates the Plumbers' Academy with a plan to help the Vreedle Brothers do the last thing anyone would expect.
 	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. 	Ben is infuriated when Gwen asks Darkstar for his help defeating the team's deadliest, and most unlikely foe of all. 	Ben is infuriated when Gwen asks Darkstar for his help defeating the team's deadliest, and most unlikely foe of all. 	Ben is infuriated when Gwen asks Darkstar for his help defeating the team's deadliest, and most unlikely foe of all. 	Ben is infuriated when Gwen asks Darkstar for his help defeating the team's deadliest, and most unlikely foe of all.
 	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! 	It's Ben and company's last stand against a foe they can't bring themselves to fight! 	It's Ben and company's last stand against a foe they can't bring themselves to fight! 	It's Ben and company's last stand against a foe they can't bring themselves to fight! 	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
 	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! 	The team discovers a strange alien girl with no memory but Sunder has been hired to capture her! 	The team discovers a strange alien girl with no memory but Sunder has been hired to capture her! 	The team discovers a strange alien girl with no memory but Sunder has been hired to capture her! 	The team discovers a strange alien girl with no memory but Sunder has been hired to capture her!
 	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. 	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. 	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. 	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. 	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.
170px	The Big Story 	3 	23 	121 	March 4, 2011
170px	When a mysterious meteor shower leaves behind an evil alien plant species, Ben 10 super-fan Jimmy steps up to save the day. 	When a mysterious meteor shower leaves behind an evil alien plant species, Ben 10 super-fan Jimmy steps up to save the day. 	When a mysterious meteor shower leaves behind an evil alien plant species, Ben 10 super-fan Jimmy steps up to save the day. 	When a mysterious meteor shower leaves behind an evil alien plant species, Ben 10 super-fan Jimmy steps up to save the day. 	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 	4 	24 	122 	February 18, 2011
 	The return of the evil Dr. Viktor! 	The return of the evil Dr. Viktor! 	The return of the evil Dr. Viktor! 	The return of the evil Dr. Viktor! 	The return of the evil Dr. Viktor!
 	Girl Trouble 	5 	25 	123 	March 11, 2011
 	Gwen's cousin, Sunny, pays a visit but she's more than meets the eye! 	Gwen's cousin, Sunny, pays a visit but she's more than meets the eye! 	Gwen's cousin, Sunny, pays a visit but she's more than meets the eye! 	Gwen's cousin, Sunny, pays a visit but she's more than meets the eye! 	Gwen's cousin, Sunny, pays a visit but she's more than meets the eye!
 	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. 	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. 	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. 	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. 	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.
 	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. 	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. 	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. 	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. 	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.
 	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. 	The Forever Knights accidentally unleash an evil force! And at a Bellwood retirement home, a retired Forever Knight suddenly gets a very bad feeling. 	The Forever Knights accidentally unleash an evil force! And at a Bellwood retirement home, a retired Forever Knight suddenly gets a very bad feeling. 	The Forever Knights accidentally unleash an evil force! And at a Bellwood retirement home, a retired Forever Knight suddenly gets a very bad feeling. 	The Forever Knights accidentally unleash an evil force! And at a Bellwood retirement home, a retired Forever Knight suddenly gets a very bad feeling.
 	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. 	Ben and the crew are forced to go through basic training at the Plumbers' Academy. And you can just imagine how well that goes. 	Ben and the crew are forced to go through basic training at the Plumbers' Academy. And you can just imagine how well that goes. 	Ben and the crew are forced to go through basic training at the Plumbers' Academy. And you can just imagine how well that goes. 	Ben and the crew are forced to go through basic training at the Plumbers' Academy. And you can just imagine how well that goes.
 	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. 	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. 	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. 	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. 	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.
170px	Prisoner Number 775 is Missing 	11 	31 	129 	April 29, 2011
170px	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. 	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. 	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. 	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. 	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.
 	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. 	Grandpa Max reveals the story of how he met Verdona and how he eventually was recruited to become a Plumber. 	Grandpa Max reveals the story of how he met Verdona and how he eventually was recruited to become a Plumber. 	Grandpa Max reveals the story of how he met Verdona and how he eventually was recruited to become a Plumber. 	Grandpa Max reveals the story of how he met Verdona and how he eventually was recruited to become a Plumber.
 	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. 	An evil Xenocite queen takes over the Arachnichimps' home planet by attaching herself to a crime lord named Mizaru. 	An evil Xenocite queen takes over the Arachnichimps' home planet by attaching herself to a crime lord named Mizaru. 	An evil Xenocite queen takes over the Arachnichimps' home planet by attaching herself to a crime lord named Mizaru. 	An evil Xenocite queen takes over the Arachnichimps' home planet by attaching herself to a crime lord named Mizaru.
 	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! 	A mysterious object crashes in the center of Bellwood, unleashing Techadon robots with one thing on their mind, destroying Ben! 	A mysterious object crashes in the center of Bellwood, unleashing Techadon robots with one thing on their mind, destroying Ben! 	A mysterious object crashes in the center of Bellwood, unleashing Techadon robots with one thing on their mind, destroying Ben! 	A mysterious object crashes in the center of Bellwood, unleashing Techadon robots with one thing on their mind, destroying Ben!
 	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. 	The Forever Knights factions have been united into one and an all-out war against the aliens on Earth erupts. 	The Forever Knights factions have been united into one and an all-out war against the aliens on Earth erupts. 	The Forever Knights factions have been united into one and an all-out war against the aliens on Earth erupts. 	The Forever Knights factions have been united into one and an all-out war against the aliens on Earth erupts.
 	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! 	A fanatical group of whackos have taken to worshiping Vilgax of all people or aliens! And guess who has joined them, Julie! 	A fanatical group of whackos have taken to worshiping Vilgax of all people or aliens! And guess who has joined them, Julie! 	A fanatical group of whackos have taken to worshiping Vilgax of all people or aliens! And guess who has joined them, Julie! 	A fanatical group of whackos have taken to worshiping Vilgax of all people or aliens! And guess who has joined them, Julie!
 	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?	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?	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?	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?	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?
170px	The Perfect Girlfriend 	18 	38 	136 	October 21, 2011
170px	When Ben finds himself in an intense battle against Ssserpent, Julie steps in and helps him defeat the slimy brute. 	When Ben finds himself in an intense battle against Ssserpent, Julie steps in and helps him defeat the slimy brute. 	When Ben finds himself in an intense battle against Ssserpent, Julie steps in and helps him defeat the slimy brute. 	When Ben finds himself in an intense battle against Ssserpent, Julie steps in and helps him defeat the slimy brute. 	When Ben finds himself in an intense battle against Ssserpent, Julie steps in and helps him defeat the slimy brute.
 	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. 	Ben is suddenly NOT Ben and it's an all-out revolt as the aliens inside Ben's Ultimatrix demand their freedom. 	Ben is suddenly NOT Ben and it's an all-out revolt as the aliens inside Ben's Ultimatrix demand their freedom. 	Ben is suddenly NOT Ben and it's an all-out revolt as the aliens inside Ben's Ultimatrix demand their freedom. 	Ben is suddenly NOT Ben and it's an all-out revolt as the aliens inside Ben's Ultimatrix demand their freedom.
170px	The Mother of All Vreedles 	20 	40 	138 	November 18, 2011
170px	Ma Vreedle returns to Earth with a cloning machine and a plan to unleash 300 billion Pretty Boy Vreedles on the planet. 	Ma Vreedle returns to Earth with a cloning machine and a plan to unleash 300 billion Pretty Boy Vreedles on the planet. 	Ma Vreedle returns to Earth with a cloning machine and a plan to unleash 300 billion Pretty Boy Vreedles on the planet. 	Ma Vreedle returns to Earth with a cloning machine and a plan to unleash 300 billion Pretty Boy Vreedles on the planet. 	Ma Vreedle returns to Earth with a cloning machine and a plan to unleash 300 billion Pretty Boy Vreedles on the planet.
 	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. 	After a giant garbage-like creature appears and drags a boat down into the ocean, Ben and the crew investigate the Pacific Garbage Vortex. 	After a giant garbage-like creature appears and drags a boat down into the ocean, Ben and the crew investigate the Pacific Garbage Vortex. 	After a giant garbage-like creature appears and drags a boat down into the ocean, Ben and the crew investigate the Pacific Garbage Vortex. 	After a giant garbage-like creature appears and drags a boat down into the ocean, Ben and the crew investigate the Pacific Garbage Vortex.
 	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. 	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. 	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. 	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. 	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.
170px	Solitary Alignment 	23 	43 	141 	December 9, 2011
170px	Azmuth reveals how old George first got the sword and defeated Dagon, and the crew travels to the Middle Ages to learn the truth. 	Azmuth reveals how old George first got the sword and defeated Dagon, and the crew travels to the Middle Ages to learn the truth. 	Azmuth reveals how old George first got the sword and defeated Dagon, and the crew travels to the Middle Ages to learn the truth. 	Azmuth reveals how old George first got the sword and defeated Dagon, and the crew travels to the Middle Ages to learn the truth. 	Azmuth reveals how old George first got the sword and defeated Dagon, and the crew travels to the Middle Ages to learn the truth.
 	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. 	A mysterious Techadon Master visits Earth, looking for the Ultimatrix. And he turns out to be more dangerous than any Techadon ever imagined. 	A mysterious Techadon Master visits Earth, looking for the Ultimatrix. And he turns out to be more dangerous than any Techadon ever imagined. 	A mysterious Techadon Master visits Earth, looking for the Ultimatrix. And he turns out to be more dangerous than any Techadon ever imagined. 	A mysterious Techadon Master visits Earth, looking for the Ultimatrix. And he turns out to be more dangerous than any Techadon ever imagined.
170px	Enemy of My Frenemy 	25 	45 	143 	February 11, 2012
170px	Gwen hopes to rescue Charmcaster. When she asks Hex to join her, he refuses saying he won't join a suicide mission. 	Gwen hopes to rescue Charmcaster. When she asks Hex to join her, he refuses saying he won't join a suicide mission. 	Gwen hopes to rescue Charmcaster. When she asks Hex to join her, he refuses saying he won't join a suicide mission. 	Gwen hopes to rescue Charmcaster. When she asks Hex to join her, he refuses saying he won't join a suicide mission. 	Gwen hopes to rescue Charmcaster. When she asks Hex to join her, he refuses saying he won't join a suicide mission.
 	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. 	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. 	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. 	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. 	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.
170px	The Eggman Cometh 	27 	47 	145 	March 3, 2012
170px	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. 	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. 	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. 	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. 	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.
 	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. 	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. 	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. 	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. 	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.
 	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. 	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. 	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. 	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. 	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.
 	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. 	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. 	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. 	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. 	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.
 	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. 	Dagon is getting closer and closer to entering our dimension thanks to an old foe. 	Dagon is getting closer and closer to entering our dimension thanks to an old foe. 	Dagon is getting closer and closer to entering our dimension thanks to an old foe. 	Dagon is getting closer and closer to entering our dimension thanks to an old foe.
 	The Ultimate Enemy: Part 2 	32 	52 	150 	March 31, 2012
 	Vilgax re-emerges in his most powerful form ever! Can Ben stop him? 	Vilgax re-emerges in his most powerful form ever! Can Ben stop him? 	Vilgax re-emerges in his most powerful form ever! Can Ben stop him? 	Vilgax re-emerges in his most powerful form ever! Can Ben stop him? 	Vilgax re-emerges in his most powerful form ever! Can Ben stop him?
==Crossovers==
Image	Title 	Original Airdate 	 	
 	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.	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.	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.	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.
==Notes==
==References==
===Crew Statements===
====Dwayne McDuffie====
====T.J. Collins====
===Cartoon Network===
===Merchandise===
__NOTOC__
es:Lista de episodios de Ben_10: Supremacía Alienígena
it:Episodi Ben 10 Ultimate Alien
pl:Odcinki Ben 10: Ultimate Alien
pt-br:Lista de episódios de Ben 10: Supremacia Alienígena
ro:Lista episoadelor din Ben 10: Ultimate Alien
ru:Бен 10: Инопланетная Сверхсила/Эпизоды
Category:Episodes
Category:Ben 10: Ultimate Alien Episodes