Ah B (Vic Chou) was once a champion motorbike racer but lost everything in a fixed match. His wife Jiawei (Mini Yang) left him, and he has since abandoned himself to drinking and gambling to pass the days, turning a blind eye to his neighbor Ma Niu (Ella), who quietly admires him from afar. Six years later, Jiawei turns up unexpectedly one day and temporarily puts in his custody a little boy named Bin Bin (Xiao Xiao Bin) - the son he never knew of. This adorable kid manages to melt Ah B’s cold hard heart, and the rookie daddy gradually finds the will to pull himself together and recover his wasted life. However, just as Ah B has developed a close, inseparable bond with Bin Bin, Jiawei comes back to take him away with her to the United States.