A promotional material for the film presented the following: "The only film of the Paraguayan-Bolivian war, filmed with the authorization of the Government of Paraguay. The real expression of the struggle in the Chaco Boreal, under a fiery sky, filmed by the Argentine cameraman Roque Funes, who, with the kind collaboration of the Government of Paraguay, managed to take the most interesting notes of the current war. The attack on Boquerón. The Bolivian resistance. Flying over the line of fire. Troops making their way through the jungle. Bayonet charge. Artillery in action. Fall of Boquerón. Wounded people and prisoners on the march towards Asunción and a thousand scenes of the war taken in the same front fields. The horror and heroism of man in the face of thirst, hunger and death".