When a young rancher crosses paths with a Lakota girl from a nearby reservation, her mysterious disappearance sparks a search that uncovers a harrowing past and hints at a dire future.

Having a self-absorbed New Age mother and an estranged father means 15-year-old Ellis Whitman has grown up relying on an unconventional guardian: a goat-trekking, marijuana-growing sage called Goat Man. So when Ellis decides to leave the alternative ways of his desert homestead for a stuffy East Coast prep school, major changes are in store, but not in the way you'd think.