"得赌神毕生(shēng )绝技的刀(dāo )仔（刘德华(huá )）在龙五（向华(huá )强）的陪(péi )同下重出(chū )江(jiāng )湖，代表师(shī )父(fù )以赌技致力慈善事(shì )业，人称赌侠。遇(yù )到欲拜(bài )赌神为师号称赌圣的阿星（周星驰）后(hòu )，两人互展(zhǎn )计谋绝技，打成平手。