A group of young friends as they come of age and strive to meet the unexpected demands of adult life while coming to terms with their own identities, pasts, and passions.。永利与建华是最要好的同学,永利随建华到台北结识了建华表妹的漂亮同学赵雅丽,因永利没有见过世面,人生性腼腆,其中闹出不少笑话……。救护队目马志业(古天乐饰)坚持救人至上,不按章法,捱到五劳七伤;调职过来的王维(游学修饰)视晋升为本,两人背道而驰产生矛盾。志业是单亲好爸爸,与小女儿面临天各一方。至亲最爱,一旦生离死别,谁不怕有被遗忘的一天?十字车要走得远、开得快,人生旅途亦然。一场屯门公路严重事故令他们不再迷惘。导演卓韵芝言情之作,写照生命的伟大,十万火急与不动声色的场面交替得张弛有度,处处真情流露。离不开的,是穿梭大街小巷的风景,是对这座城巿的留恋。。