Rui arrives in a small town looking for his father, a prospector. Before that, he gets involved with Maria, who is facing problems in the family. Maria's stepfather is the head of a gang and will go to any lengths to prevent Rui from finding his father.
Brazilian outback, cowboys preserve their age-old customs, communicating with their cattle in a form of plaintive singing known as Aboio. The chant resounds an improvised, ancient form that is an entrance to the life and the imaginary of the ancient Brazilian cattle drivers.
