annie and robert mclean live in new york .they have a thirteen-years old daughter ,Grace.Grace has riding accident in which she and her beloved horse ,pilgrim,are seriously injured.When neither Grace nor Pilgrim is able to recover from the accident ,Annie asks the help of Toom Boker a man who cures troublend horses and who lives on a ranch in Montana,USA.When Tom comes to see Pilgrim ,he says that the horse is too baldy damaged for him to help.However ,Annie still feelsthat Grace will only get better if her horse recovers.She takes them both across America to Montana ,where she contacts Tom ,who very reluctanly agrees to look at the horse agin.