This is a list of episodes in the American animated television series Ben 10: Alien Force. A total of 46 episodes have been produced and aired. 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. 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. 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.