"得(dé )赌神毕生(shēng )绝技的刀仔（刘德华）在龙五(wǔ )（向华强）的陪同(tóng )下重出(chū )江湖，代表师父以赌技致力慈善(shàn )事(shì )业，人称赌侠。遇(yù )到欲拜赌神为师号称赌圣的阿星（周星驰）后，两人互(hù )展(zhǎn )计谋绝技(jì )，打成平(píng )手。