Ben 10: Ultimate Alien

Ended / 7:00pm Cartoon Network 22 min.
Taking place a few weeks after where Ben 10: Alien Force leaves off, Ben 10: Ultimate Alien follows the now sixteen-year-old Ben. The Omnitrix has been destroyed and Ben must learn to master the secrets of the new Ultimatrix, a gauntlet-like version of the old Omnitrix that not only gives him access to all of his original powers and abilities, but also allows him to evolve his alien forms into even stronger and even more powerful versions (called "ultimate forms").

Season 2

32 Episodes

Vilgax betrays Dagon so that he can absorb all of his power to destroy his one true enemy: Ben Tennyson.
Mar 31 2012
Dagon breaks out of the seal and turns all humans into Flame Keepers' Circle soldiers.
Mar 24 2012
The Flame Keepers' Circle try to release Dagon from his dimension, but Vilgax is released instead.
Mar 17 2012
Albedo tries to reclaim the Ultimatrix from Ben by transporting him into one of his own worst nightmares.
Mar 10 2012
Dr. Animo returns with an army of dragon-like mutants, while Ben has his own problems with his new transformation, Juryrigg.
Mar 03 2012
Movie star Jennifer Nocturne, who is not in her right mind, teams up with the evil Captain Nemesis.
Feb 25 2012
Darkstar finds his way into Ledgerdomain, where he seduces Charmcaster, using her energies in his latest attempt to destroy Ben, Gwen, and Kevin.
Feb 18 2012
Ben, Gwen, and Kevin set out to rescue Charmcaster from Ledgerdomain, but, unbeknownst to them, Charmcaster has plans of her own.
Feb 11 2012
A mysterious weapon master from Techadon visits Earth and wants the Ultimatrix to enhance his creations.
Feb 04 2012
Azmuth reveals how Sir George got his sword and slayed Dagon, and the team decides to make a deal with the First Knight.
Dec 09 2011
Vilgax and the Flame Keepers' Circle duel George and the Forever Knights, who oppose their goals of reviving Dagon.
Dec 02 2011
Ma Vreedle plans to create a clone army of her newest spawn, using all of Earth's saltwater as a key ingredient in the cloning process.
Nov 18 2011
The team battles a new, dangerous threat in the Pacific Ocean.
Nov 04 2011
The six Ultimate Forms demand their freedom from the Ultimatrix.
Oct 28 2011
The nanochips are back, and have disguised themselves as Julie.
Oct 21 2011
Albedo resurfaces, and he's making money off of Ben's fame.
Oct 14 2011
Julie joins a fanatical group who, unbeknownst to her, have discovered Vilgax and worship him.
Oct 07 2011
Ben finds himself in an inescapable situation when Techadons, custom-made to destroy him, start coming after him.
Sep 30 2011
A Xenocyte Queen takes over the Arachnichimps' home planet.
Sep 23 2011
Old George brings the Forever Knights in one group in order to vanquish every alien being on Earth.
Sep 16 2011
The team takes a look at the real purpose of Area 51 and have to recapture an escaped alien prisoner.
Apr 29 2011
Max tells the kids about his first encounter with aliens and the story of how he and Verdona met and fell in love.
Apr 22 2011
Ben 10,000 returns to help Ben battle a new, dangerous threat.
Apr 15 2011
A day in the hectic life of Gwen Tennyson.
Apr 08 2011
Ben, Gwen, and Kevin are forced to go through basic training at the Plumbers' Academy.
Apr 01 2011
An evil creature released from another dimension has plans to enslave the human race for its master.
Mar 25 2011
The gang face the swarm again, but this time with a new, more powerful queen.
Mar 18 2011
Gwen is infuriated by the prospect of her cousin paying the team a visit, and it only gets worse when it is uncovered that her cousin is not entirely human...
Mar 11 2011
While looking for a story to put on his site, Jimmy sees a strange meteorite fall to Earth.
Mar 04 2011
The team are called in to investigate a dispute in the small country of Zarkovia. Once there, they discover an old enemy is about to be unleashed.
Feb 18 2011
When Baz-El gets captured, it's up to Ben and the others to rescue him.
Feb 11 2011
The gang meet a new girl called Eunice and everything is going well... until Sunder shows up for her.
Feb 04 2011

Season 1

20 Episodes

Gwen and Ben have to do whatever it takes to bring down the "mad dog" Kevin.
Dec 10 2010
When Ben and Gwen are faced with an unexpected enemy, Gwen turns to Darkstar for help.
Dec 10 2010
Argit asks for protection from Ben and Gwen after Kevin decides to finish him off.
Dec 03 2010
Old feelings resurface when Kevin returns to the Null Void that housed him for years.
Nov 19 2010
When Aggregor goes after the limitless power of Alien X, the gang are forced to do whatever it takes...
Nov 12 2010
With the fourth piece of the Map of Infinity almost in Aggregor's clutches, the gang chase him through the artificial planetoid known as the Perplexahedron.
Nov 05 2010
Gwen is forced to team up with her nemesis, Charmcaster, when the team finds themselves to have to stop Aggregor!
Oct 29 2010
Deep 1x13
Ben and the gang travel to a water planet in order to stop Aggregor from obtaining the second piece of the Map of Infinity.
Oct 22 2010
Cash and J.T. take credit for Ben's successes, so Psyphon comes back thinking J.T. and Cash were responsible for Vilgax's defeat!
Oct 15 2010
Ben must stop the newly transformed and extremely dangerous Aggregor from attaining the first piece of the Map of Infinity.
Oct 10 2010
Aggregor, having recaptured the five aliens, puts his ultimate plan into action.
Oct 10 2010
Ben's childhood hero makes a comeback while he's on a date with a beautiful, young movie actress.
Jun 18 2010
Fused 1x08
Ben accidentally gets fused with Aggregor's fifth prisoner who has no plans of getting out of his body!
Jun 11 2010
The gang encounter Argit, who has teamed up with the Forever Knights and Aggregor's fourth prisoner.
Jun 04 2010
After Kevin accidentally releases Aggregor's third prisoner from a suit that protects others from his radiation, the gang has to stop him from radiating the Earth!
May 28 2010
The real story behind Aggregor and his escaped prisoners is revealed.
May 21 2010
Will Harangue comes up with a mastermind plan to put an end to Ben, the 'menace'.
May 14 2010
Zombozo, Charmcaster, and Vulkanus form an alliance and plan to ambush Ben's parents.
May 07 2010
Duped 1x02
Ben uses Echo Echo to make two clones of himself to attempt to be in three places at once.
Apr 30 2010
Fame 1x01
Ben's secret identity is exposed, casting him into the spotlight. Elsewhere, an alien plans to detonate a nuclear bomb.
Apr 23 2010