受过(🕕)特(tè )警训练(🔨)的(🆓)警察陈家驹(jū )(成龙(🐌))为人正直办(bàn )案(🕟)拼(pīn )命(🛍),时(🕰)常将(jiāng )女友(张曼玉)忽略。某次围剿行动(🥩)中陈家驹(📿)拘捕了大毒(dú )(🎏)枭朱滔,但因证(zhèng )人((⚫)朱(zhū )滔的秘书(🎩))(🤷)莎(shā )莲娜(林(🕯)青霞)的突然失(shī )踪(🚉),未能将其(🛺)绳之于法,陈家驹因此(cǐ )受降职处分(fèn )。事后含恨在心(xīn )的朱(zhū )滔(tāo )为了报(bào )复陈家驹,设计将(jiāng )其诱(🔢)至囚禁(jìn )莎莲娜的别(bié )墅,并派(🙂)手(📙)下(xià )杀(✋)死一名警察嫁(🌞)祸(huò )(🙄)其身,令陈家驹在警(🈴)方的通(tōng )辑(jí )令下只能四(sì )处(🕙)流亡。