Prince Planet is the English name given to one of the earliest Japanese TV anime series, Planet Boy Popi(遊星少年パピイYūsei Shōnen Papī), when it was televised in America in the mid-1960s. A 52 episode monochrome anime, it tells the story of a member of the Universal Peace Corps from the Planet Radion coming to Earth on a mission to determine if this world meets standards for membership in the Galactic Union of Worlds and assist its inhabitants during his stay. While on his mission Prince Planet adopts the identity of an Earth boy named Bobby and gains comrades who work together alongside him combating evil forces both alien and terrestrial.