A wealthy kung fu expert, who is turned evil by the slaying of his wife and the loss of his son's arms, bully a town through terror and force. They find pleasure and satisfaction by crippling those who stumble in their way. Four of those who are crippled, a hawker who is blinded, a blacksmith made mute and deaf, a drifter who loses his legs, and a fighter who loses his sanity, band together to use their disabilities to defeat the evil Master Du.