Ben 10 Ultimate Alien

Ben's secret identity is revealed to the world, and an alien refugee is about to detonate a nuclear bomb.

Under pressure from his newfound fame, Ben comes up with a plan to be at more than one place at a time.

Now that Ben's secret identity is out in the open, his old enemies team up to attack his family.

Ben's celebrity lands him a starring role in his own video game.

Five aliens from another galaxy attempt to escape from their mysterious captor.

A radioactive alien menace tricks Kevin into freeing him from his containment suit.

The team discovers that alien con-man Argit has somehow become the leader of the Forever Knights.

Ben is trapped in the form of his newest transformation, a form Aggregor intends to destroy.

A star-struck Ben dates a beautiful young movie actress, while his childhood hero makes a comeback.

Aggregor's ultimate plan is revealed, and it's already too late to stop him!

Ben and his team travel to a bizarre half-frozen, half-molten planet to prevent Aggregor from obtaining a priceless map.

JT and Cash get in over their heads when they take credit for Ben's heroic acts.

Ben, Kevin and Gwen journey to the center of an all-water planet in an attempt to finally capture Aggregor.

Gwen takes the team to a dimension of magic, where their only hope of survival rests with her old foe Charmcaster.

Ben, Kevin and Gwen race Aggregor through a mysterious artificial planetoid designed to destroy anyone who enters.

Professor Paradox holds the key to stopping Aggregor from tapping into the limitless power of Alien X.

To settle an old score, Kevin voluntarily returns to the Null Void prison he once escaped.

Argit infiltrates the Plumber's Academy with a plan to help the Vreedle Brothers do the last thing anyone would expect.

Ben is infuriated when Gwen asks Darkstar for his help defeating the team's deadliest and most unlikely foe of all.

It's Ben and company's last stand against a foe they can't bring themselves to fight!