Ben 10: Ultimate Alien

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!