The film tells that Zhang Jinsheng, Ma Hui, Wang Biao and Huo Qiang are best friends. They fight/rob/pearl/treasure/walk/enter/prison together. When they were released, four of them were in prison/prison/canteen/hall, fighting with another gang/prisoner/criminal/persecuting/fighting. Hui was sentenced to two weeks' imprisonment. Sheng went to the place where the jewels were buried to dig for cultural relics, but the jewels were gone.