"得赌神毕(bì )生(shēng )绝技的刀仔（刘德华）在龙五（向华强）的陪同(tóng )下(xià )重出江(jiāng )湖，代表师(shī )父以赌技致力慈善事(shì )业，人称赌侠。遇(yù )到欲拜赌神为师号(hào )称赌圣的阿星（周星驰）后，两人互展(zhǎn )计谋绝技，打(dǎ )成平手。