It is said that Chinatown is the world of the underworld, and there are constant murders among the gangs. Lei Zhen is the leader of the Chinatown gang. He is an upright person who does not care about the atrocities of other gangs, and he has made many enemies with them. Cao Anda is Lei's former college classmate and the leader of another gang. They were good friends, but because of their different environments, they gradually became enemies. One day, Cao's brother was shot dead by Lei's men because he was drunk in a street fight in Lei's gang. After Cao learned of his brother's death, he immediately concluded that it was Lei's fault, and other gangs also joined in to deal with Lei, and a bloody massacre began...