"得(dé )赌神毕生(shēng )绝技的刀仔（刘(liú )德华）在龙五（向(xiàng )华(huá )强）的陪同下(xià )重出江湖，代表(biǎo )师父以赌技(jì )致力慈善事(shì )业，人称赌侠。遇到(dào )欲拜赌神为师号称赌圣的阿星(xīng )（周星驰）后，两人互展(zhǎn )计谋绝技(jì )，打成平手。