Season 1, Episode 1: Fame
Ben’s secret is out. As Ben deals with his new found fame, a new threat emerges as a thief steals parts of a new advanced spaceship from NASA.

Season 1, Episode 2: Duped
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.

Season 1, Episode 3: Hit ‘Em Where They Live
After Jimmy Jones reveals Ben’s identity, some of his enemies (such as Zombozo, Rojo, Charmcaster, Vulkanus, and Sevenseven) team up to try to attack his family. Now Ben and his friends have to protect them no matter what.

Season 1, Episode 4: Computer Games
Ben gets an offer to star in his own video game. The designers real motives are part of a plan to destroy Ben.

Season 1, Episode 5: Escape from Aggregor
The team encounters another alien who escaped from Aggregor. And learns more about his goals.

Season 1, Episode 6: Too Hot to Handle
P’Andor escaped from Aggregor, now he wants help escaping from his suit. Everyone soon learns why he was placed in the suit.

Season 1, Episode 7: Andreas’ Fault
Then team encounters another of Aggregor’s escaped prisoners, Andreas. Argit is using Andreas as part of a new scheme.

Season 1, Episode 8: Fused
Ra’Ad, the last prisoner attacks Ben. He informs the team of the true fate of his comrades. Ra’Ad finds a hiding place, but endangers Ben in the process.

Season 1, Episode 9: Hero Time
Ben meets his hero, Captain Nemesis. Nemesis becomes jealous of all the attention Ben attracts.

Season 1, Episode 10: Ultimate Aggregor
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.

Season 1, Episode 11: Map of Infinity
Aggregor has absorbed all the powers of his captured aliens. Now he’s after the Map of Infinity.

Season 1, Episode 12: Reflected Glory
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.

Season 1, Episode 13: Deep
Aggregor is after the next piece of the map on a watery planet.

Season 1, Episode 14: Where the Magic Happens
Aggregor escapes to a magical dimension. Gwen asks for Charmcasters help to pursue him. The team learns about Charmcaster’s past and why she’s willing to help them now.

Season 1, Episode 15: Perplexahedron
The last piece of the map is hidden in an artificial puzzle world.

Season 1, Episode 16: The Forge of Creation
The team makes their final attempt to stop Aggregor. They find an unexpected ally. One person will make a decision that will have lasting repercussions.

Season 1, Episode 17: Nor Iron Bars a Cage
Kevin’s out for payback on anyone who has ever crossed him. His first stop is a prison in the Null Void. Ben and Gwen try to stop him. Ben comes to a grim decision.

Season 1, Episode 18: The Enemy of My Enemy
Argit asks Ben and Gwen for protection from Kevin. They take him to the Plumber’s Academy, but that won’t stop Kevin.

Season 1, Episode 19: Absolute Power: Part One
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.

Season 1, Episode 20: Absolute Power: Part Two
Final confrontation with Kevin. While Gwen makes a last ditch effort to save Kevin, Ben fights an all out battle with Kevin.