Miranda Stevens and Starlight, the black stallion she hopes to own some day, set off on a pack trip into the Rocky Mountains, which soon leads them into more adventures.

Miranda Stevens is sure that if she just had a horse of her own it wouldn't matter that she was sent to live with her grandparents and go to a school where she had no friends. She doesn't think twice before taking Christopher Bergman's dare to ride the most beautiful horse she has ever seen. The dire consequence of that action begins a chain of adventure that tests her courage and spawns some unexpected friendships.