Ben 10: Ultimate Alien

Aggregor has all five aliens. The Plumbers manage to disable Aggregor's ship, forcing Aggregor to find a new way to absorb their powers. The team makes a last ditch effort to save the alien prisoners.

All Episodes - Season 1

Episode 1

Fame

Episode 2

Duped

Episode 3

Hit 'Em Where They Live

Episode 4

Video Games

Episode 5

Escape from Aggregor

Episode 6

Too Hot to Handle

Episode 7

Andreas' Fault

Episode 8

Fused

Episode 9

Hero Time

Episode 10

Ultimate Aggregor

Episode 11

Map of Infinity

Episode 12

Reflected Glory

Episode 13

Deep

Episode 14

Where the Magic Happens

Episode 15

Perplexhahedron

Episode 16

The Forge of Creation

Episode 17

Nor Iron Bars a Cage

Episode 18

The Enemy of My Enemy

Episode 19

Absolute Power (1)

Episode 20

Absolute Power (2)