Seasons & episodes
S2 · E1Darkstar Rising 2008-10-10 · 23 min
A new villain comes into town, his name is Darkstar, he commits some crimes and gets the team's attention fast
S2 · E2Alone Together 2008-10-17 · 23 min
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.
S2 · E3Good Copy, Bad Copy 2008-10-24 · 23 min
An alien impersonates Ben with hopes of using his Omnitrix to annihilate him.
S2 · E4Save The Last Dance 2008-11-07 · 23 min
Kevin asks Gwen to the school dance; Ben fears he's losing control of the Omnitrix.
S2 · E5Undercover 2008-11-14 · 23 min
Cooper is kidnapped by the DNAliens, who want him to build a mystery arch.
S2 · E6Pet Project 2008-11-21 · 23 min
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.
S2 · E7Grounded 2008-11-23 · 23 min
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.
S2 · E8Voided 2008-12-05 · 23 min
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
S2 · E9Inside Man 2008-12-12 · 23 min
Ben and the gang rescue a runaway prisoner of the DNAliens.
S2 · E10Birds of a Feather 2009-03-24 · 23 min
The gang helps the prince of the arachna-chimps regain power
S2 · E11Unearthed 2009-03-25 · 23 min
Ben cares for a baby monster and helps locate its parents before the DNAliens find it.
S2 · E12War of the Worlds (1) 2009-03-27 · 23 min
Ben, Gwen and Kevin gather their allies to counter the threat of the incoming Highbreed fleet. Azmuth reveals a secret about the Omnitrix.
S2 · E13War of the Worlds (2) 2009-03-27 · 23 min
Ben goes to the HighBreeds' world in an attempt to stop their attack on Earth.