Documentary film about the "zanja de Alsina", a long trench dug in the Argentinian Pampa in 1876 as way to separate the "civilized" from the "barbarians" during the massacre of indigenous peoples known as "campaña del desierto".
Director: Sebastián Díaz
Osvaldo Bayer
Marcelo Valko
Juan José Estévez
Gastón Partarrieu
Eduardo Hiriart
Alberto Orga
Jorgelina Walter
Armando Nervi