Having lost her beloved husband, a whaling captain, to a watery grave, Molly Gallagher refuses to risk more heartbreak. Determined to keep her headstrong son from following in his father’s footsteps, she agrees to become the mail-order bride of a Montana country doctor. She tells her new husband that she can never give her love to another man; what she doesn’t tell him is that she has a young daughter and a rebellious teenage son.