『乖把皮(pi)帶解(jie)了(le)(le)用嘴也行(xing)』介紹:美國的(de)“殺手(shou)(shou)壕”格(ge)斗(dou)比(bi)(bi)賽(sai)即將拉(la)開帷幕,兩支芝加(jia)哥地(di)區的(de)黑(hei)幫都意(yi)欲在(zai)(zai)比(bi)(bi)賽(sai)中(zhong)勝出(chu),而其中(zhong)一(yi)方的(de)王牌選手(shou)(shou)——殺人王李呼聲頗(po)高。青年阿(a)(a)龍(long)(long)(成龍(long)(long) 飾)一(yi)家在(zai)(zai)芝加(jia)哥經營飯店,龍(long)(long)父(fu)(fu)遭黑(hei)幫勒索,阿(a)(a)龍(long)(long)出(chu)手(shou)(shou)趕跑惡人反被父(fu)(fu)親抱怨,原來(lai)龍(long)(long)父(fu)(fu)一(yi)直不滿阿(a)(a)龍(long)(long)跟自己弟弟學習武術,斥之不務(wu)正業,要求他向(xiang)做了(le)(le)醫生的(de)長子(zi)(zi)學習。阿(a)(a)龍(long)(long)教訓惡徒的(de)經過(guo)被黑(hei)幫二代(dai)當家彭(peng)看見(jian),彭(peng)有意(yi)令阿(a)(a)龍(long)(long)為(wei)他們出(chu)戰(zhan)殺手(shou)(shou)壕比(bi)(bi)賽(sai),彭(peng)所在(zai)(zai)黑(hei)幫隨即毆打(da)阿(a)(a)龍(long)(long)好友,并綁(bang)架(jia)了(le)(le)阿(a)(a)龍(long)(long)沒過(guo)門的(de)嫂子(zi)(zi)要挾他與殺人王戰(zhan)斗(dou)。阿(a)(a)龍(long)(long)和叔叔救人失敗,無奈只得刻苦(ku)訓練,代(dai)表彭(peng)一(yi)伙(huo)參(can)加(jia)比(bi)(bi)賽(sai)。阿(a)(a)龍(long)(long)在(zai)(zai)比(bi)(bi)賽(sai)中(zhong)連戰(zhan)連捷,在(zai)(zai)他和殺人王的(de)終極決賽(sai)之時,彭(peng)卻(que)出(chu)賣了(le)(le)他……