When 10-year-old Ben Tennyson discovers a mysterious device, he gains the power to change into ten different alien heroes, each with uniquely awesome powers. With such abilities at his disposal, Ben realizes a greater responsibility to help others and stop evildoers, but that doesn't mean he's above a little superpowered mischief now and then.
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YouTube TV
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see all options Availability data: JustWatch
- Seasons
- 4
- Episodes aired
- 52
- Latest aired
- S04E13
- Total runtime
- 19h 38min
Timeline when each season aired
- Season 1 December 2005 – March 2006 13 episodes
- Season 2 May 2006 – October 2006 13 episodes
- Season 3 November 2006 – April 2007 13 episodes
- Season 4 July 2007 – April 2008 13 episodes
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S01E01 And Then There Were 10
December 27 · 23min find the promo
Show synopsis
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.
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S01E02 Washington B.C.
January 13 · 23min find the promo
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Ben must fight Dr. Animo, a crazed scientist who has a DNA-altering device.
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S01E03 The Krakken
January 14 · 23min find the promo
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Ben has his hands full with a giant sea monster and an evil poacher.
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S01E04 Permanent Retirement
January 21 · 23min find the promo
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Ben must rescue his aunt and grandfather when they are held hostage by shape-shifting aliens.
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S01E05 Hunted
January 28 · 23min find the promo
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Ben is pursued by three bounty hunters sent by Vilgax to steal the Omnitrix.
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S01E06 Tourist Trap
February 4 · 22min find the promo
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Ben accidentally releases creatures made of electric energy and must use his own powers to recapture them.
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S01E07 Kevin 11
February 11 · 22min find the promo
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Ben meets a mutant who can absorb any form of energy and may be after the Omnitrix.
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S01E08 The Alliance
February 18 · 22min find the promo
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Ben clashes with a female gang member who's become part cyborg.
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S01E09 Last Laugh
February 25 · 23min find the promo
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Ben discovers an evil circus that's headed by a psychic vampire clown named Zombozo.
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S01E10 Lucky Girl
March 4 · 23min find the promo
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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.
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S01E11 A Small Problem
March 11 · 23min find the promo
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Ben gets revenge on an amusement-park attendant who said he was too small to go on a ride.
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S01E12 Side Effects
March 18 · 22min find the promo
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Ben's summer cold causes strange physical changes in his alien personas.
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S01E13 Secrets
March 25 · 23min find the promo
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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.