Between 1864 and 1870, South America was the scene of the biggest and bloodiest armed conflict of the century, known as the "Paraguay War," or "Big War," for Paraguayans. Mixing reality and fiction, the documentary discusses this "draft" of World War I, which involved Brazil, Argentina, Uruguay and Paraguay, decimating around one million people. The film interweaves the official history, the popular imaginary and the criticism of the military, chroniclers and historians, articulated to a complex iconographic and musical panel, and to a visual rescue of the theater of operations in Paraguay.