After her overprotective grandmother has a stroke, 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 a wild mare that her mother once rode.

While visiting her eccentric aunt who lives in Wyoming, twelve-year-old Jade befriends a boy who believes he is a descendant of Butch Cassidy.

When ten-year-old Margaríta Sandoval's family moves to Wyoming during the Great Depression, she faces racism, homesickness, and the possibility that her grandmother's land in New Mexico may be lost.