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.

The previous year, Toho had just made their first successful superhero show, Rainbowman.

Their transformation code (associated with a "henshin" pose) is "Zone Fight Power".

They have red, black, blue and yellow bodies, along with the same colors for the eyes, faces and floppy antennae.