Mandy Pajeck had a tough childhood --- an abusive father, a mother who left, and a younger brother, Luke, who depended on her when she was just a child herself. Now twenty-eight, Mandy remains devoted to Luke and feels responsible for the accident that took his sight. But his complete reliance on her care is making them both miserable. When she meets handsome Zach Harrigan and his mini guide horse, she thinks she's found the ticket to her brother's happiness --- and maybe her own.