"得赌(dǔ )神毕(bì )生(shēng )绝技的刀仔（刘德(dé )华）在龙(lóng )五（向(xiàng )华强）的陪同(tóng )下重出江湖，代表师父以赌技致(zhì )力慈善事(shì )业，人称赌侠。遇到欲拜赌神为师号称赌圣的阿星（周星驰(chí )）后，两人互展计谋绝技，打(dǎ )成平手。