A wild and dangerous mountain setting and a daughter who lives, breathes and sleeps horses is a recipe for trouble for ranch owner, Sandy Scott. But Kirstie is undaunted by her mother's warnings. She's at her happiest riding the trails through the tall forests and deep canyons of the Meltwater Range . . .
Kirstie and her palomino, Lucky, are as close as a horse and rider can be. But now a mystery illness threatens their partnership and puts Lucky's life in danger. Neither the local vet, nor Kirstie's brother, Matt, can identify what's wrong. So Kirstie makes a third and final attempt to find a cure for her horse. Driving Lucky deep into the Rockies, she seeks out Zak Stone, a reclusive but legendary horse doctor - will he be able to save Lucky's life?