When multimillionaire cattleman Jack Mercy dies, he leaves his Montana ranch to his three daughters. The women are half-sisters and complete strangers to one another. But according to his will, the three women will only receive their inheritance under one condition: they must live together at the ranch for a full year. The sisters are challenged by a mysterious saboteur who is determined to see them fail and must solve some mysteries their father left behind in order to receive their inheritance.