Young wild colt Sky must find his way over rough terrain to rejoin his family after being captured for the Pony Express.

After her overprotective grandmother has a stroke, eleven-year-old Maya, an orphan, leaves her extremely restricted life in California to stay with her mother's family on a remote Wyoming ranch, where she discovers a love of horses and encounters Artemisia, a wild mare that her mother once rode.

Twelve-year-old Selah aspires to be an equestrian superstar. That would require a horse but her Grandpa wants nothing to do with horses. Then Selah sees buzzards circling the grasslands behind Grandpa's farm. They are stalking a horse trapped in wire and Selah is its only hope.