The film tells the story of a street gangster who has been bullied since childhood. In order to get ahead, he pretends to be a member of the "Axe Gang" and tries to blackmail the residents of a place called "Pig Cage Walled City". He does not want to cause grievances between the real "Axe Gang" and the residents of the "Pig Cage Walled City". While watching the struggle between good and evil factions, Xing Zai gradually understood the true meaning of Kung Fu.