Minibus driver, Ah Man (Louis Koo) dies in an accident during his shift on his minibus whose license number is DY1314. Hit by the bad news, Siu Wai (Cecilia Cheung), Ah Man's wife, knows she has to carry on, especially when there is Lok Lok, the son of Ah Man and his ex-wife. Trying to earn a living for Lok Lok, Siu Wai repairs the minibus and becomes a driver herself. She faces many difficulties as a minibus driver, but Dai Fai (Lau Ching Wan) helps her overcome the problems. When Siu Wai finds that her financial condition gets worse, she decides to send Lok Lok back to his birth mother, but the cruel mother refuses to take him back...