The film tells the story of Mo Zheng, a young loser from Douquan Street, who offended the gang leader Piao Shu at a young age and was banned from practicing martial arts for life. However, he has been secretly learning martial arts and regards the four former war gods of Douquan Street as his companionsLike. Uncle Piao constantly squeezes the common people of Douquan Street and extends his black hand to the last pure land of Douquan Street - the Black Fist Hall, and sends out the Wuchi Ghost Sha, which has been modified with biochemical chips, hoping to occupy the fist with violenceAfter the renovation, it will be transformed into a casino and a red light area. With the help of Anna, the daughter of the curator, Mo Zheng inspired Dao Shan Huo Hai to return to the martial arts world. In the end, he openly defeated the ghost demon on the boxing ring of the Black Fist Hall, drove away Uncle Piao, and allowed him toDouquan Street has returned to the hands of ordinary people who advocate martial arts.