Ben 10: Alien Force/Episodes

Ben 10: Alien Force is a 46 episode American animated series created by team Man of Action (a group consisting of Duncan Rouleau, Joe Casey, Joe Kelly, and Steven T. Seagle), and produced by Cartoon Network Studios. It takes place five years after the series, Ben 10. The series takes a different turn than its predecessor, taking on a somewhat darker tone. It also was nominated for four Emmy Awards, winning one for Outstanding Sound Mixing - Live Action and Animation. The series premiered on Cartoon Network on April 18, 2008, in the United States and ended on March 26, 2010. This series is followed-up by another sequel series titled, Ben 10: Ultimate Alien.

The pilot of the series set a record as the most-watched original series premiere in Cartoon Network history among various young age groups according to preliminary data from Nielsen Media Research. The one-hour premiere also scored as the highest-rated telecast of the day on both cable and broadcast among similar age groups. Originally, series producers Dwayne McDuffie and Glen Murakami designed the first 26 episodes to be the first season. Cartoon Network, without their consent, split the order into the first two seasons. At the 2008 Comic Con, series producers revealed the show was picked up for a third season. The third season was revealed to have 20 episodes (instead of the usual 13) on story editor/executive producer Dwayne McDuffie's forum.

The series made a brief run on Cartoon Network's Toonami block, from June 21, 2008 to September 20, 2008. It was also notably part of Toonami's final broadcast on September 20, 2008.

All episodes of Ben 10: Alien Force have been released on DVD in the United States.