 Thomas  girlfriend Sylvia is kidnapped by the brutal Kung Fu martial artist Mr. X. Taking her to his hideaway mansion on the 5th floor he has assigned all his goons all over the hideout to keep out Thomas from attempting any sort of rescue attempt. Worse still, his positioned his closest henchmen in charge of the four floors beneath him and Sylvia. On the first floor in charge is the deadly Stickfighter; on the Second floor servicing Mr. X is a skillful Boomerang fighter; a big massive Giant is assigned boss of the third floor and finally the evil black magician guards the fourth floor. Like Mr. X knowing the art of Kung Fu Thomas must scuffle his way to the Fifth Floor and defeat the sinful Mr. X in time before any damage is done to Sylvia. As Thomas first steps into the lair hall to rescue his sweetheart; men grab him and a goon dressed in white starts tossing knives directly at him ....