Follows a New York City girl who has it all until her life comes crashing down around her. As luck would have it, a mysterious gift from her father gives her a new lease on life.。上世纪杰出化学家沈澜意外穿越到2025年，成为沈家下人之女，6岁萌宝沈兰。沈兰发现自己儿子沈振民已是病重老人后，认出象征母子约定的树并冒险救治，并与儿子相认，而后这位萌宝奶奶正式回归，肩负起守护家业的重任。。