"得赌神(shén )毕(bì )生绝技的刀仔（刘德华）在龙(lóng )五（向华(huá )强）的陪同下(xià )重出江湖，代表(biǎo )师父以赌技致力慈善(shàn )事(shì )业，人称赌(dǔ )侠。遇(yù )到(dào )欲拜赌神为师号称赌圣的阿星（周星驰）后，两人互展计谋绝技，打成平手。