The region of Pantanal is the ideal place for unscrupulous men in search of fortune, adventure and anonymity. Pilot of a small airplane that provides services in the place, the young Tiger decides to defend Monica, heiress of a great farm, against the predatory conduct of the ambitious Malamud. Aiming to become the region's largest landowner, Malamud uses a gang of violent men to extort and kill other farmers.