Gatchaman is about a group of five young superheroes who fight an evil organization called Galactor. The Gatchaman team is made up of Ken the Eagle, Joe the Condor, Jun the Swan, Jinpei the Swallow, and Ryu the Owl. They are aided by Dr. Nambu and his assistant, the android 8-Q. The Gatchaman team uses high-tech gadgets and vehicles, as well as their own special techniques, to battle Galactor and their giant mecha monsters.