讲述了沂蒙山(✒)青年农民(mín )龙喜蛋到上海打(dǎ )工挣(🕟)钱，被隆盛(shèng )行(🤴)管(🍥)家阴差阳(🎹)错(cuò )当成大老板(bǎn )隆(lóng )得(dé )宝失散多年的少爷隆地蛋(dàn )接(jiē )进隆府(fǔ )。龙喜蛋(🚤)被(🖲)迫冒充(chōng )真少(shǎo )爷，被隆得宝封(fēng )(🕯)为(👁)隆家财(✳)产继承(🛹)人和隆镖队(🕌)队长(📞)，而(ér )真少爷(yé )被遗(✖)忘街(jiē )头成(🖍)为(wéi )乞丐。