Ruthless Master Doom (Philip Ko) seeks to dominate the martial world. To do so he must first possess the Magical 7 Star Armor, a vest which renders the wearer invincible. The final piece of the armor is kept by Kung Fu Mama (Chiang Sheng, "The Five Venoms"). The secret of the armor is passed on to her nephew Doggy (Sun Kwok Ming), a kung fu fanatic who has taken up residence with a crazy martial arts wizard (Leung Kar Yan, "Warriors Two") who teaches Doggy the insane and dangerous Exciting Dragon technique in order to prepare him for a showdown with Master Doom.
