Gwen and co revisit Legerdomain in hopes of rescuing Charmcaster.

After Darkstar opens the Door to Anywhere, Charmcaster comes through, and the two team up to give Ben, Gwen, and Kevin the fight of a lifetime.

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.

Following a visit from Paradox after a fight with Eon, Ben 10,000 arrives 20 years from the future to seek the aid of his past counterpart in tracking down Eon.

Azmuth reveals the origin of the sword and how he first encountered Old George. Ben comes to a decision on how to handle the Daigon.

Movie starlet Jennifer Nocturne is recaptured by the evil Captain Nemesis!

A mysterious alien girl named Eunice has no memory and is being hunted by Sunder. While evading Sunder, Ben soon discovers that Eunice has nature-based abilities.

Victor Validus resurfaces and attacks Ben at night. Elena Validus and the nanochips return.

Gwen has always been a multi-tasker, trying to juggle school, hobbies, friends and her work as a hero, waking up early and going to sleep late. But Gwen's already packed day is about to get worse when Dr. Animo attacks with an army of giant frogs and Gwen is forced to make a hard choice.

Grandpa Max tells the team about his first UFO encounter, which led him to meet Verdona.

Ben finds out there's a new show called 'Ben 10: Live." He finds an old enemy running the show and cashing in on his fame.

A Techadon weapon master comes to Earth and wants the Ultimatrix.

With the fourth piece of the Map of Infinity almost in Aggregor's clutches, the gang chase him through the artificial planetoid known as Perplexahedron.

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

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

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.

After a base is attacked, Max is infuriated when they learn it was a secret alien prison facility. While Max argues with the officer in charge, the team tries to locate an escaped prisoner.

Julie gets Ben to visit a charity organization who wants to improve the world with alien technology. Ben soon discovers the charity's benefactor is an old enemy.

Dagon is getting closer and closer to entering our dimension thanks to an old foe.

The Forever Knights unleash an evil force mistaken for an ancient weapon.

Ben, Gwen, and Kevin are summoned to a Plumbers' Academy to go under training that is supervised by Magister Hulka.

Old George, the original Forever Knight, reclaims his position, and orders the Knights to remove all aliens on Earth.

Ben faces Tecadon killer robots that have been programmed to kill him. Each robot is more powerful than the last one. Ben's only chance to survive is for Gwen to find out who commissioned the robots.

Ben's Ultimate transformations have developed their own personalities. Now they want their freedom from Ben.

The final battle between the Forever Knights and Dagon's Esoterica is in full swing, with Ben caught in the middle!