Fiveyearold Elowyn regains pastlife memories of being a genius mathematician who died seventy years ago. The son she sacrificed herself to save is now a 78yearold tech tycoon. She joins the wealthy Calder clan. With her expertise and allies, she thwarts the scheming fiancée, protects her neglected greatgranddaughter and tames her rebellious greatgrandson. Helped by an old comrade, she reclaims her stolen research credits, mends rifts and unites the fractured family.