A new threat appears all over the world in the form of the terrorist group known as the Galactor. To combat the forces of Galactor, well-renowned scientist Kouzaburou Nanbu unleashes the Science Ninja Team Gatchaman, a team of five young heroes skilled in the art of ninjutsu and dressed in unique bird-like costumes.

A few follow up series was made a few years later.

A re-edited version of the series was released in the US under the title Battle of the Planets". That version cut down substantially on the violent scenes and added a new underwater base with a cute robot and robot dog.

Another series was made in the 80s that didn't edit out most of the original scenes. The follow up episodes was adapted a few years later. You can now own translated and unedited versions of all the original episodes if you want to.