讲述了沂蒙山青年(nián )农民(mín )龙喜蛋到上(shàng )海打(dǎ )工(🌰)挣(🃏)钱,被(bèi )隆盛(shèng )(🛍)行(🔱)管家阴差阳错当成大老板隆得宝失(shī )散多年的少(shǎo )(💤)爷隆(🎾)地(📿)蛋接(jiē )进隆府。龙喜(xǐ )蛋被迫冒充真少爷(yé ),被(bèi )隆得宝封为隆家财产继(jì )承人和(hé )(🥄)隆(lóng )(🛹)镖队队长(zhǎng )(🐖),而(🛺)真(📞)少(🎿)爷被遗(🗑)忘(wàng )街头成为(wéi )乞(🚸)丐。