Born among the wild horses of the Owyhee up-lands in Idaho, Flax is separated from the other horses in her band by a twist of fate. She's helped by the kindness of a boy named Jim Thorne, but when the eighteen-year-old cowboy leaves Flax's side, she runs into an unexpected adventure.
With no family to call her own, Flax joins a new band of horses and learns to run from rope-swinging cowboys. She'll keep running until she finds a true home.