 When her divorced mother dies, Sarah, a 15 year old Californian girl, is sent to live with her father on his farm in the Scottish highlands. There she meets a hermit (Fergus) who looks after sick and injured animals and destroys any traps set by hunters. One day she sees a white stallion in the fog. Her father doesn t believe that the horse is real, and that Fergus is having too big an influence on her. But the poachers are after the beautiful horse.