"得赌(dǔ )神毕生绝技的刀仔(zǎi )（刘德华）在龙五（向(xiàng )华强）的陪同下重(chóng )出江湖，代(dài )表(biǎo )师父以赌技致力慈善(shàn )事业，人称赌侠。遇到(dào )欲(yù )拜(bài )赌神为师号称赌圣的阿星（周星驰）后，两人(rén )互展(zhǎn )计(jì )谋绝技，打成平手。