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.

• DCB (Del Carril-Barbieri)
• Black & White
• Hugo del Carril
• Adriana Benetti
• Raúl del Valle
• Pedro Laxalt
• Gloria Ferrandiz
• Eloy Álvarez
• Herminia Franco
• Luis Otero