Season 1
Episodes
S1 · E1 · 27 Dec 2005 · 23 min
And Then There Were 10
Average kid, ten year old Ben Tennyson, his Grandpa Max and his cousin Gwen's summer of adventure takes an odd turn when Ben discovers a watch like object that has been jettisoned from alien spacecraft high above the Earth.
S1 · E2 · 13 Jan 2006 · 23 min
Washington B.C.
Ben must fight Dr. Animo, a crazed scientist who has a DNA-altering device.
S1 · E3 · 14 Jan 2006 · 23 min
The Krakken
Ben has his hands full with a giant sea monster and an evil poacher.
S1 · E4 · 21 Jan 2006 · 23 min
Permanent Retirement
Ben must rescue his aunt and grandfather when they are held hostage by shape-shifting aliens.
S1 · E5 · 28 Jan 2006 · 23 min
Hunted
Ben is pursued by three bounty hunters sent by Vilgax to steal the Omnitrix.
S1 · E6 · 4 Feb 2006 · 22 min
Tourist Trap
Ben accidentally releases creatures made of electric energy and must use his own powers to recapture them.
S1 · E7 · 11 Feb 2006 · 22 min
Kevin 11
Ben meets a mutant who can absorb any form of energy and may be after the Omnitrix.
S1 · E8 · 18 Feb 2006 · 22 min
The Alliance
Ben clashes with a female gang member who's become part cyborg.
S1 · E9 · 25 Feb 2006 · 23 min
Last Laugh
Ben discovers an evil circus that's headed by a psychic vampire clown named Zombozo.
S1 · E10 · 4 Mar 2006 · 23 min
Lucky Girl
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.
S1 · E11 · 11 Mar 2006 · 23 min
A Small Problem
Ben gets revenge on an amusement-park attendant who said he was too small to go on a ride.
S1 · E12 · 18 Mar 2006 · 22 min
Side Effects
Ben's summer cold causes strange physical changes in his alien personas.
S1 · E13 · 25 Mar 2006 · 23 min
Secrets
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.
Data and images from TMDB.