
Season 1
Episodes

1. And Then There Were 10
2005-12-27
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.

2. Washington B.C.
2006-01-13
Ben must fight Dr. Animo, a crazed scientist who has a DNA-altering device.

3. The Krakken
2006-01-14
Ben has his hands full with a giant sea monster and an evil poacher.

4. Permanent Retirement
2006-01-21
Ben must rescue his aunt and grandfather when they are held hostage by shape-shifting aliens.

5. Hunted
2006-01-28
Ben is pursued by three bounty hunters sent by Vilgax to steal the Omnitrix.

6. Tourist Trap
2006-02-04
Ben accidentally releases creatures made of electric energy and must use his own powers to recapture them.

7. Kevin 11
2006-02-11
Ben meets a mutant who can absorb any form of energy and may be after the Omnitrix.

8. The Alliance
2006-02-18
Ben clashes with a female gang member who's become part cyborg.

9. Last Laugh
2006-02-25
Ben discovers an evil circus that's headed by a psychic vampire clown named Zombozo.

10. Lucky Girl
2006-03-04
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.

11. A Small Problem
2006-03-11
Ben gets revenge on an amusement-park attendant who said he was too small to go on a ride.

12. Side Effects
2006-03-18
Ben's summer cold causes strange physical changes in his alien personas.

13. Secrets
2006-03-25
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.