Season 1

January 21, 2006

Ben must rescue his aunt and grandfather when they are held hostage by shape-shifting aliens.

January 28, 2006

Ben is pursued by three bounty hunters sent by Vilgax to steal the Omnitrix.

February 4, 2006

Ben accidentally releases creatures made of electric energy and must use his own powers to recapture them.

February 11, 2006

Ben meets a mutant who can absorb any form of energy and may be after the Omnitrix.

February 18, 2006

Ben clashes with a female gang member who's become part cyborg.

February 25, 2006

Ben discovers an evil circus that's headed by a psychic vampire clown named Zombozo.

March 4, 2006

Ben battles a sorcerer who possesses a number of charms, and Gwen suddenly becomes a superhero when one of the charms falls into her hands.

March 11, 2006

Ben gets revenge on an amusement-park attendant who said he was too small to go on a ride.

March 18, 2006

Ben's summer cold causes strange physical changes in his alien personas.

March 25, 2006

Vilgax tries to get the Omnitrix for himself while Grandpa Max's strange past becomes known, causing a showdown between Vilgax and the Tennyson family.