15-year-old Ben Tennyson chooses to once again put on the Omnitrix and discovers that it has recalibrated and can now transform him into 10 brand-new aliens. Joined by his super-powered cousin Gwen Tennyson and his equally powerful former enemy Kevin Levin, Ben is on a mission to find his missing Grandpa Max.
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see all options Availability data: JustWatch
- Seasons
- 3
- Episodes aired
- 46
- Latest aired
- S03E19
- Total runtime
- 17h 38min
Timeline when each season aired
- Season 1 April 2008 – August 2008 13 episodes
- Season 2 October 2008 – March 2009 13 episodes
- Season 3 September 2009 – March 2010 20 episodes
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S02E01 Darkstar Rising
October 10 · 23min find the promo
Show synopsis
A new villain comes into town, his name is Darkstar, he commits some crimes and gets the team's attention fast
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S02E02 Alone Together
October 17 · 23min find the promo
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During a battle Ben and an alien commander are teleported to a distant world. They must put their differences aside if they're going to have any chance of finding a way to return to Earth.
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S02E03 Good Copy, Bad Copy
October 24 · 23min find the promo
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An alien impersonates Ben with hopes of using his Omnitrix to annihilate him.
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S02E04 Save The Last Dance
November 7 · 23min find the promo
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Kevin asks Gwen to the school dance; Ben fears he's losing control of the Omnitrix.
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S02E05 Undercover
November 14 · 23min find the promo
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Cooper is kidnapped by the DNAliens, who want him to build a mystery arch.
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S02E06 Pet Project
November 21 · 23min find the promo
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To find and destroy the alien dragon species, the Forever Knights capture Ship to control a starship they built out of alien technology to locate their homeworld and destroy them.
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S02E07 Grounded
November 23 · 23min find the promo
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When Ben's parents discover his ability to turn into aliens, they forbid him from using the Omnitrix and later ground him from using it again. Eventually Gwen is grounded too leaving Kevin to stop the DNAliens.
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S02E08 Voided
December 5 · 23min find the promo
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After Gwen receives an S.O.S. from Helen, Ben must go into the Null Void to save her and Manny. Once there, he must find The Wrench in order to stop D'Void, who happens to be Ben's old enemy Dr. Animo
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S02E09 Inside Man
December 12 · 23min find the promo
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Ben and the gang rescue a runaway prisoner of the DNAliens.
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S02E10 Birds of a Feather
March 24 · 23min find the promo
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The gang helps the prince of the arachna-chimps regain power
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S02E11 Unearthed
March 25 · 23min find the promo
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Ben cares for a baby monster and helps locate its parents before the DNAliens find it.
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S02E12 War of the Worlds (1)
March 27 · 23min find the promo
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Ben, Gwen and Kevin gather their allies to counter the threat of the incoming Highbreed fleet. Azmuth reveals a secret about the Omnitrix.
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S02E13 War of the Worlds (2)
March 27 · 23min find the promo
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Ben goes to the HighBreeds' world in an attempt to stop their attack on Earth.