"得赌神毕(bì )生(shēng )绝技的刀仔（刘德华）在龙五（向华强(qiáng )）的陪同(tóng )下(xià )重出江(jiāng )湖，代表师父以赌技(jì )致力慈善事业(yè )，人(rén )称赌侠。遇到欲拜赌神(shén )为师号(hào )称赌圣的阿星（周星驰）后，两人互展(zhǎn )计谋绝技(jì )，打成平(píng )手。