After eighteen years apart, Willa returns to the Mercer family—huge muscles, sunny grin, and all. Jealous adopted sister Celeste schemes to humiliate her again and again, only to be foiled by Willa's deadpan honesty. Willa wins the family's trust, exposes Celeste's collusion with an outsider, saves her grandmother's farm, and sees Celeste leave. She and lawyer Graham fall in love, and the family finds its happy ending.