Ben 10: Alien Force

Ben discovers that the Forever Knights are trading weapons with the DNAliens, while at the same time, Grandpa Max has mysteriously gone missing. He decides to return the Omnitrix on his wrist and go hero once again.

Ben, Gwen, and Kevin follow a lead that takes them to a secret base in the desert. There they hope to find Grandpa Max but instead find a Highbreed spaceship with a giant cannon.

Gwen discovers that Grandpa Max's badge is able to signal other Plumbers. However, by using it, they meet up with a familiar face, a pyronite.

Kevin shatters Ben and Gwen's trust when he steals the Rust Bucket to sell for alien technology on the black market.

Grandpa Max leaves Ben a series of instructions to contact a team of heroes. Things go the wrong direction when they soon find them.

Gwen's older brother, Ken, is suddenly missing. As they look, they encounter a surprise leading to a shocking secret from the DNAliens.