The BEST episodes of Ben 10: Ultimate Alien season 1
Every episode of Ben 10: Ultimate Alien season 1, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Ben 10: Ultimate Alien season 1!
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").
#1 - Escape from Aggregor
Season 1 - Episode 5 - Aired 5/21/2010
The real story behind Aggregor and his escaped prisoners is revealed.
#2 - ...Nor Iron Bars a Cage
Season 1 - Episode 17 - Aired 11/19/2010
Old feelings resurface when Kevin returns to the Null Void that housed him for years.
#3 - The Forge of Creation
Season 1 - Episode 16 - Aired 11/12/2010
When Aggregor goes after the limitless power of Alien X, the gang are forced to do whatever it takes...
#4 - Absolute Power (1)
Season 1 - Episode 19 - Aired 12/10/2010
When Ben and Gwen are faced with an unexpected enemy, Gwen turns to Darkstar for help.
#5 - Hero Time
Season 1 - Episode 9 - Aired 6/18/2010
Ben's childhood hero makes a comeback while he's on a date with a beautiful, young movie actress.
#6 - Fused
Season 1 - Episode 8 - Aired 6/11/2010
Ben accidentally gets fused with Aggregor's fifth prisoner who has no plans of getting out of his body!
#7 - Map of Infinity
Season 1 - Episode 11 - Aired 10/10/2010
Ben must stop the newly transformed and extremely dangerous Aggregor from attaining the first piece of the Map of Infinity.
#8 - Absolute Power (2)
Season 1 - Episode 20 - Aired 12/10/2010
Gwen and Ben have to do whatever it takes to bring down the "mad dog" Kevin.
#9 - Where the Magic Happens
Season 1 - Episode 14 - Aired 10/29/2010
Gwen is forced to team up with her nemesis, Charmcaster, when the team finds themselves to have to stop Aggregor!
#10 - Perplexahedron
Season 1 - Episode 15 - Aired 11/5/2010
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.
#11 - Video Games
Season 1 - Episode 4 - Aired 5/14/2010
Will Harangue comes up with a mastermind plan to put an end to Ben, the 'menace'.
#12 - Too Hot to Handle
Season 1 - Episode 6 - Aired 5/28/2010
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!
#13 - Ultimate Aggregor
Season 1 - Episode 10 - Aired 10/10/2010
Aggregor, having recaptured the five aliens, puts his ultimate plan into action.
#14 - Andreas' Fault
Season 1 - Episode 7 - Aired 6/4/2010
The gang encounter Argit, who has teamed up with the Forever Knights and Aggregor's fourth prisoner.
#15 - The Enemy of My Enemy
Season 1 - Episode 18 - Aired 12/3/2010
Argit asks for protection from Ben and Gwen after Kevin decides to finish him off.
#16 - Hit 'Em Where They Live
Season 1 - Episode 3 - Aired 5/7/2010
Zombozo, Charmcaster, and Vulkanus form an alliance and plan to ambush Ben's parents.
#17 - Deep
Season 1 - Episode 13 - Aired 10/22/2010
Ben and the gang travel to a water planet in order to stop Aggregor from obtaining the second piece of the Map of Infinity.
#18 - Fame
Season 1 - Episode 1 - Aired 4/23/2010
Ben's secret identity is exposed, casting him into the spotlight. Elsewhere, an alien plans to detonate a nuclear bomb.
#19 - Reflected Glory
Season 1 - Episode 12 - Aired 10/15/2010
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!
#20 - Duped
Season 1 - Episode 2 - Aired 4/30/2010
Ben uses Echo Echo to make two clones of himself to attempt to be in three places at once.