High Quality Content by WIKIPEDIA articles! Dragons: Riders of Berk is an American computer-animated television series airing on Cartoon Network based on the 2010 film How to Train Your Dragon. The series serves as a bridge between the first film and its 2014 sequel. One hour preview consisting of two episodes aired on August 7, 2012, with the official premiere of the series on September 4, 2012. A total of 40 episodes will air during the first and the second season.