Intelligence confirmed by the head of the Alto Hospicio police forces Rojas and Carrasco to travel to Tacna, a wild Peruvian city on the border with Chile. In Peru, Rojas infiltrates the people-trafficking gangs who deal in "white slaves" in an attempt to find the missing Chilean girls, to no avail.

Following the trail of disappearances leads Rojas to 'La Ponderosa' a place in the middle of the desert where private parties are held with prostitutes, many of whom are minors.