When young superhero Ben 10 and his friends investigate a wrecked spaceship and find the evil Forever Knights, Ben and the pilot of the ship, a bounty hunter who wants to kill Ben, get sent into an alternate reality together.

An ancient artifact robs Kevin of his powers, rendering him helpless when Gwen and Ben find themselves in terrible peril. A curious alien box spells trouble for the town of Bellwood. And Gwen travels back in time to right a terrible wrong. It's Volume 9, the final episodes. The adventures are out of this world. And the shocking showdown between Ben and Vilgax will brings this Season to the most dramatic conclusion ever!

Ben pushes his powers to the max when Vilgax challenges him to a battle where winner takes all, including the Earth. Ben accidentally overloads the Omnitrix, loses his transformations and turns Kevin into a monster. Once Vilgax is under control, Ben lends a hand to a popcorn-munching alien and the team bargains with repo men who are trying to capture Ship. It's all in a day's work for a teenage hero.

Gwen, Ben and Kevin track down Gwen's older brother Ken, only to discover another missing relative and a startling secret of the DNAliens. Ben's first date with his crush, Julie, is totally ruined when a small piece of an alien pilot named Ship takes over the carnival rides - attacking Ben and kidnapping his date. When Gwen learns that her magic is actually inherited alien power from her grandma, she is forced to choose between a normal life and accepting...

Ben has the ability to transform himself into ten incredible alien life-forms with the Omnitrix. When Grandpa Max is kidnapped and creatures from outer space threaten to destroy the Earth, Ben's superpowers are needed.

When Grandpa Max needs help finding an alien spy transmitter, the Plumbers' Helpers race against Ben and his friends to prove who is the better team.

Ben 10, a typical teenage boy who happens to be able to turn into ten different aliens, must save his girlfriend after she is accidentally turned into a lizard.