Zone Fighter, known in Japan as Ryūsei Ningen Zone (流星人間ゾーン, Ryūsei Ningen Zōn, lit. "Meteor Human Zone"), is a tokusatsu science fiction superhero television series. Produced by Toho Company Ltd., the show aired on Nippon Television from April 2 to September 24, 1973, with a total of 26 episodes. This was Toho's answer to not only the popular Ultra Series, but the Henshin Hero phenomenon started by shows like Kamen Rider and Android Kikaider.