Ben 10 - Ultimate Alien

Ben's secret is out. As Ben deals with his newfound fame, a new threat emerges as a thief steals parts of a new advanced spaceship from NASA.

Stars: Yuri Lowenthal, Ashley Johnson, Greg Cipes
Director(s): Dan Riba
Writer(s): Joe Casey, Joe Kelly, Man of Action

Ben is supposed to attend a tournament to support his girlfriend, but the Forever Knights are trying to break into a museum. Ben tries to use the Ultimatrix to handle all his obligations.

Stars: Yuri Lowenthal, Ashley Johnson, Greg Cipes
Director(s): Butch Lukic
Writer(s): Len Uhley, Duncan Rouleau, Joe Casey

With Ben's identity known, some of his enemies (such as Zombozo, Rojo, Charmcaster, Vulkanus, and SevenSeven) team up to try to attack his family. Now Ben and friends have to protect them no matter what.

Stars: Yuri Lowenthal, Ashley Johnson, Greg Cipes
Director(s): Matt Youngberg
Writer(s): Len Wein, Duncan Rouleau, Joe Casey

Ben gets an offer to star in his own video game, but the designer's real motives are part of a plan to destroy Ben.

Stars: Yuri Lowenthal, Ashley Johnson, Greg Cipes
Director(s): Dan Riba
Writer(s): Joe Casey, Joe Kelly, Man of Action

The team encounters another alien who escaped from Aggregor and, through him, learns more about Aggregor's goals.

Stars: Yuri Lowenthal, Ashley Johnson, Greg Cipes
Director(s): Butch Lukic
Writer(s): Joe Casey, Charlotte Fullerton, Joe Kelly

P'Andor, escaped from Aggregor, now wants help to escape his encapsulating suit, but Kevin's the first to perceive that that's a fatally bad idea.

Stars: Yuri Lowenthal, Ashley Johnson, Greg Cipes
Director(s): Matt Youngberg
Writer(s): Joe Casey, Marty Isenberg, Joe Kelly

Then team encounters another of Aggregor's escaped prisoners, Andreas, whom Argit is using as part of a scheme against the Forever Knights.

Stars: Yuri Lowenthal, Ashley Johnson, Greg Cipes
Director(s): Dan Riba
Writer(s): Ernie Altbacker, Joe Casey, Joe Kelly

Ra'ad, the last of Aggregor's escaped prisoners, attacks Ben and informs the team of the true fate of his comrades. He finds a safe hiding place but one that endangers Ben in the process.

Stars: Yuri Lowenthal, Ashley Johnson, Greg Cipes
Director(s): Butch Lukic
Writer(s): Len Uhley, Duncan Rouleau, Joe Casey

Ben meets his hero, Captain Nemesis, who's become jealous of all the attention Ben attracts.

Stars: Yuri Lowenthal, Ashley Johnson, Greg Cipes
Director(s): Matt Youngberg
Writer(s): Steven Barnes, Joe Casey, Joe Kelly

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.

Stars: Yuri Lowenthal, Ashley Johnson, Greg Cipes
Director(s): Dan Riba
Writer(s): Joe Casey, Joe Kelly, Man of Action

Aggregor has absorbed all the powers of his captured aliens. Now he's after the Map of Infinity.

Stars: Yuri Lowenthal, Ashley Johnson, Greg Cipes
Director(s): Butch Lukic
Writer(s): Joe Casey, Joe Kelly, Man of Action

Cash and JT convince the team to allow them to take credit for the team's actions so they can earn money for Cash's mother's operation.

Stars: Yuri Lowenthal, Ashley Johnson, Greg Cipes
Director(s): Matt Youngberg
Writer(s): Joe Casey, Peter David, Joe Kelly

Aggregor is after the next piece of the map on a watery planet.

Stars: Yuri Lowenthal, Ashley Johnson, Greg Cipes
Director(s): Dan Riba
Writer(s): Joe Casey, Marty Isenberg, Joe Kelly

Aggregor escapes to a magical dimension. Gwen asks for Charmcaster's help to pursue him. The team learns about Charmcaster's past and why she's willing to help them now.

Stars: Yuri Lowenthal, Ashley Johnson, Greg Cipes
Director(s): Butch Lukic
Writer(s): Joe Casey, Joe Kelly, Man of Action

The last piece of the map is hidden in an artificial puzzle world.

Stars: Yuri Lowenthal, Ashley Johnson, Greg Cipes
Director(s): Matt Youngberg
Writer(s): Joe Casey, Joe Kelly, Man of Action

As the team makes its final attempt to stop Aggregor, they find an unexpected ally, and one person will make a fateful decision with lasting repercussions.

Stars: Yuri Lowenthal, Ashley Johnson, Greg Cipes
Director(s): Dan Riba
Writer(s): Joe Casey, Joe Kelly, Man of Action

Kevin's out for payback on anyone who has ever crossed him. His next stop is a prison in the Null Void. Ben and Gwen try to stop him, where Ben comes to a grim decision.

Stars: Yuri Lowenthal, Ashley Johnson, Greg Cipes
Director(s): Butch Lukic
Writer(s): Joe Casey, Joe Kelly, Man of Action

Argit asks Ben and Gwen for protection from Kevin, so they take him to the nearest Plumbers Academy, but that won't stop Kevin.

Stars: Yuri Lowenthal, Ashley Johnson, Greg Cipes
Director(s): Matt Youngberg
Writer(s): Len Uhley, Duncan Rouleau, Joe Casey

Kevin starts going after Plumbers kids to gain more power. Ben and Gwen continue to argue about how to handle the situation. Gwen tries to find someone who will help her cure Kevin.

Stars: Yuri Lowenthal, Ashley Johnson, Greg Cipes
Director(s): Dan Riba
Writer(s): Joe Casey, Charlotte Fullerton, Joe Kelly

Final confrontation with Kevin. While Gwen makes a last ditch effort to save Kevin, Ben fights an all out battle with Kevin.

Stars: Yuri Lowenthal, Ashley Johnson, Greg Cipes
Director(s): Butch Lukic
Writer(s): Joe Casey, Joe Kelly, Man of Action