After a brutal gang kidnaps his little sister and kills the rest of his family, Chang Wei Fu (Yi Chang) perfects his martial arts skills while seeking vengeance in this sword-swinging classic. Infiltrating the gang with the help of a beautiful young woman, the intrepid Wei risks his life to see justice served. Directed by Feng Yueh, this vintage Shaw Brothers thriller co-stars Yuan Chieh, Sammo Hung Kam-Bo, Feng Ku and Kau Lam.