"得赌神毕生绝技的刀仔(zǎi )（刘德华）在(zài )龙五（向(xiàng )华强）的陪同(tóng )下(xià )重(chóng )出(chū )江湖，代表师父以赌技(jì )致力慈善事业，人称赌侠。遇到欲(yù )拜赌(dǔ )神为师(shī )号称赌圣的阿星(xīng )（周星驰(chí )）后，两人互展计谋绝技，打成平手。