Digimon Adventure, known as the first season of Digimon: Digital Monsters outside Japan, is a Japanese anime television series created by Akiyoshi Hongo, and produced by Toei Animation in cooperation with WiZ, Bandai and Fuji Television. It is the first anime installment in the Digimon media franchise, based on the virtual pet of the same name. The series aired in Japan from March 7, 1999 to March 26, 2000. It follows a group of children and their partners attempting to save both worlds from evil, after arriving in the "Digital World" for the first time. An English-language version produced by Saban Entertainment aired in North America between August 1999 and June 2000. A video game adaptation of the series by Prope was released for PlayStation Portable on January 17, 2013. The series was followed by Digimon Adventure 02, which takes place a few years after the events of Adventure. For the series' 15th anniversary, a series of films taking place a few years after the events of Adventure 02, titled Digimon Adventure tri., was released from 2015 to 2018.