During the Tongzhi period of the Qing Dynasty, the ancient empire was about to die, and the important trading port of Guangzhou at the mouth of the Pearl River was bathing in the final prosperity and bloody fight. The Black Tiger Gang and the Beihai Gang on the dock were committing crimes and killings, while the lower-class laborers were bullied and insecure. A Fei Huang Feihong (played by Eddie Peng), who had practiced martial arts since childhood, had been in the Black Tiger Gang for five or six years. He took the head of the Beihai Gang leader as a dead man, and was accepted as the fourth son by the Black Tiger Gang boss Lei Gong (played by Sammo Hung). Lei Gong was ruthless, and his three ruthless sons helped him to do evil. In order to make money, they did not hesitate to force good women into prostitution and kill people. With his high martial arts skills, A Fei quickly became a fierce tiger in the Black Tiger Gang, but he seemed to be hiding a secret besides fighting and killing. On the other hand, the children whose fathers and brothers were sold overseas by the Black Tiger Gang and who were left without any support, formed an orphan gang under the call of Chihuo (Jing Boran), Achun (Wang Luodan) and others. They are trying to take revenge on the Black Tiger Gang with whom they have a blood feud...