The sleepy town of Black Stone erupts into martial turmoil when a counterfeiting ring run by the mysterious golden haired gorilla Mr. Lung (Tommy Lee) comes under the close scrutiny of undercover agent Pai Yu Ching (Wong Tao), a reformed assassin and expert of southern fist boxing. Aiding him in his fight against corruption is security chief Lu (Tan Tao Liang), an upright and honest man and an expert in kicking. Together they smash the ring, but are they a match for Mr. Lung, who is an expert in both mantis fist and dragon kick? Watch the vicious end duel to find out!