From the dark reaches of space an evil energy being called Draias seeks to invade the earth, following Draias the space police borrow the advance rescue vehicles and android constructed by Dr. Amano along with three civilian vehicles the space police lead by Figh bird (taking on the name Katori, the android named by Dr. Amano) transform the vehicles into massive mecha to face off against Draias and his men to protect the earth from his evil invasion.