Mark Brother (played by Chow Yun-fat) and Zhimin (played by Tony Leung) are cousins. They are overseas Chinese in Vietnam and are now in Hong Kong. aaa。 Unexpectedly, when the Vietnam War broke out, both of them were very worried about the safety of Uncle Song, the father of Zhimin, who still lives in Saigon, Vietnam. In order to raise enough money to take Zhimin's father to Hong Kong, the two decided to help local gangs smuggle arms to Vietnam.Unexpectedly, they were ambushed by Sang Bang in Vietnam. Fortunately, the Hong Kong gang boss’s girlfriend Yingjie (played by Anita Mui) rescued each other in time, and the two survived.After the three who escaped the disaster spent a happy time in Saigon, Yingjie bid farewell to both.Then Mark Brother and Zhimin took Uncle Song back to Hong Kong successfully.After returning to Hong Kong, the two lived a stable and peaceful life, but they had never heard of their benefactor Yingjie.Suddenly one day, Yingjie appeared, and the reunion made the three of them very happy.However, a disaster is approaching quietly...