"得(dé )赌神毕生绝技的刀(dāo )仔（刘德华）在龙五（向华强）的陪同下重(chóng )出(chū )江湖，代表师父以赌技致力(lì )慈善(shàn )事(shì )业，人称赌侠。遇到欲拜(bài )赌(dǔ )神为师号称赌圣的阿星（周星驰）后，两人互(hù )展(zhǎn )计谋绝技，打成平手(shǒu )。