Chinese boxer Feng Kai-shan has his eye on beautiful Hua Cheng-fen. Hua’s husband, performer Kuan Yu-lou, beats up Feng’s boxing students and threatens the lecherous Feng. In retaliation Feng has his henchmen kill Kuan at a tea-house, with the approval of merchant Chin Chih-chuan and Kao Hung-tu, aide to warlord Hua. Hsiao-lou arrives to avenge his brother Kuan’s death. He finds one of Feng’s men sleeping with Hua, and kills them both. With the help of Hua’s kid sister Cheng-fang, he next slays Feng himself. Kao lures Hsiao-lou to a pavilion, but is shot by his own hired gunman through a clever ploy by Hsiao-lou. At Chin’s request, Hsiao-lou also assassinates warlord Hu, but is then shot by Chin’s agent. Before he dies, however, Hsiao-lou manages to finish off the treacherous Chin.