Ben 10: Alien Force - Season 2
1 - Darkstar Rising
Air Date: October 10, 2008
A new villain comes into town, his name is Darkstar, he commits some crimes and gets the team's attention fast
2 - Alone Together
Air Date: October 17, 2008
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.
3 - Good Copy, Bad Copy
Air Date: October 24, 2008
An alien impersonates Ben with hopes of using his Omnitrix to annihilate him.
4 - Save The Last Dance
Air Date: November 7, 2008
Kevin asks Gwen to the school dance; Ben fears he's losing control of the Omnitrix.
5 - Undercover
Air Date: November 14, 2008
Cooper is kidnapped by the DNAliens, who want him to build a mystery arch.
6 - Pet Project
Air Date: November 21, 2008
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.
7 - Grounded
Air Date: November 23, 2008
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.
8 - Voided
Air Date: December 5, 2008
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
9 - Inside Man
Air Date: December 12, 2008
Ben and the gang rescue a runaway prisoner of the DNAliens.
10 - Birds of a Feather
Air Date: March 24, 2009
The gang helps the prince of the arachna-chimps regain power
11 - Unearthed
Air Date: March 25, 2009
Ben cares for a baby monster and helps locate its parents before the DNAliens find it.
12 - War of the Worlds (1)
Air Date: March 27, 2009
Ben, Gwen and Kevin gather their allies to counter the threat of the incoming Highbreed fleet. Azmuth reveals a secret about the Omnitrix.
13 - War of the Worlds (2)
Air Date: March 27, 2009
Ben goes to the HighBreeds' world in an attempt to stop their attack on Earth.