Jack Cody has always wanted to enter the world of the Superfights, a free fighting tournament. One night, Jack rescues a girl from a mugging and becomes a national hero. Only then is he given his opportunity to become a Superfighter. Jack soon meets a ninja who informs him that the man behind the Superfights is involved in illegal acts. Armed with this knowledge Jack must fight . . . for his life!

Somewhere in the future the environmental overkill had come. Many people had died. The rich were able to build the underworld, the poor had to stay on the surface building gangs to survive. Jason Storm, an underworld guard gets knowledge of a conspiracy to kill all people on the surface. He needs to flee to the surface, and wins Sumai, a respected martial arts master, as his ally to stop the dirty plot.