The Peralta brothers work in the countryside the Alto Paraná. There they will meet subhuman working conditions. Finally, the workers rise and harshly punish their exploiters.

Hugo del Carril
as Santos Peralta

Adriana Benetti
as Amelia

Raúl del Valle
as Aguilera

Pedro Laxalt
as Rufino Peralta

Gloria Ferrandiz
as Doña Flora

Eloy Álvarez
as Alí

Herminia Franco
as Flor de Lis

Luis Otero
as A Peon

Joaquín Petrocino
as Barreiro

Domingo Garibotto
as The Amelia's Father