Kamen Rider Fourze is an upcoming Japanese-American tokusatsu series in Toei Company's Kamen Rider Series, being the 13th series in the Heisei period run and the 22th overall. It is scheduled to begin began airing on September 4, 2011, the week following the conclusion of Kamen Rider OOO. The series' primary writer is Kazuki Nakashima, known for his screenplays of Gurren Lagann. The series commemorate the 60th anniversary of Toei Comptmy and 50th anniversary of spaceflight with Yuri Gagarin's flight in 1961. The show's catchphrase is "Youth switches on into outer space!" As with Double and OOO, Kamen Rider Fourze will have a debut appearance in his direct predecessor show in the film Let's Go Super Heroes.