After visiting a ranch during summer vacation and befriending another 11-year-old girl named CJ (Danielle Chuchran), the girl learns about illegal activities that might jeopardize the mustangs.
Despois de visitar un rancho durante as vacacións de verán e de facerse amiga doutra cativa de 11 anos chamada CJ (Danielle Chuchran), a nena descobre as actividades ilegais que están a acabar cos mustangs.