うちのひいおばあちゃん18歳

Evelyn Roff, a physicist from the nation's early founding, wakes up 70 years later to find her once eight-year-old son now a grumpy old man with two troublesome grandchildren—a clueless CEO manipulated by a scheming beauty and a lazy underachiever. Unable to tolerate such an eyesore, Evelyn, now an 18-year-old great-grandma, steps in for a fate-writing family lesson.