小慧（張栢芝飾）個未婚夫阿文（古天樂飾）交通意外過身，留低個仔樂樂（原島大地飾）仲好細個。小慧孭起頭家，獨力撫養樂樂，並繼續揸阿文嘅小巴。小慧初初做小巴司機，遇到唔少困難，好彩有大輝（劉青雲飾）幫助及支持。慢慢，小慧同大輝互生好感。
Xiaohui (played by Zhang Baizhi)'s fiancé Ah Wen (played by Louis Koo) died in a traffic accident, leaving his son Le Le (played by Yuan Daoji) still very young. Xiaohui carried her head home, raised Lele alone, and continued to touch Arwen's minibus. Xiaohui just started working as a minibus driver and encountered many difficulties, but fortunately Dahui (played by Liu Qingyun) helped and supported. Slowly, Xiaohui and Dahui have a good impression of each other.