Triple Fighter (トリプルファイター Toripuru Faitā) was a series created by Tsuburaya Productions. The first episode aired on July 3rd, 1972 and the last on December 29 of the same year. The series was similar to Kamen Rider style. The heroes fought man-sized kaijin instead of Daikaiju which appeared in many other of Tsuburaya's series. 26 episodes were made in total, but were aired in five parts making 130 mini-episodes.
An evil race from Planet Devil wiped out the population of Planet M except for three siblings who escaped to Earth. They were Tetsuo/Green Fighter, Yuji/Red Fighter and Lily/Orange Fighter. They had the ability to merge into a hero called Triple Fighter. Together they prevent the Alien Devil from conquering the Earth.