: This is the first appearance of Gwen's brother, Ken.
The team discovers a , a factory producing Xenocytes —parasitic aliens that latch onto humans and mutate them into DNAliens . After rescuing Ken from a parasite with the help of the Omnitrix, they finally find Grandpa Max inside the base. The Sacrifice
: Ben learns the Omnitrix has a genetic repair function, allowing him to turn DNAliens back into humans. [S1E6] Max Out
"" is the sixth episode of the first season of Ben 10: Alien Force and serves as a major turning point in the series. It features the long-awaited reunion with Grandpa Max and concludes with his shocking self-sacrifice. Episode Summary
The episode begins with asking Ben and Kevin for help finding her missing older brother, Ken . Their investigation leads them to a small town called Santa Mira , which has been secretly overtaken by a Highbreed operation. : This is the first appearance of Gwen's brother, Ken
: Though presumed dead after the explosion, it is later revealed in the episode " Voided " that he was actually transported to the Null Void.
While Ben, Gwen, and Kevin focus on destroying shipments of Xenocytes, Max confronts a Highbreed commander. Facing overwhelming odds and the threat of the Highbreed's global infection plan, Max chooses to detonate an unfocused like a grenade. The resulting explosion vaporizes the factory and seemingly kills both Max and the Highbreed commander, leaving the trio devastated but determined to finish his mission. Key Features & Reveals The Sacrifice : Ben learns the Omnitrix has
: The episode reveals that DNAliens are actually humans mutated by Xenocyte parasites.