en Cuevana 3. After Memoria del saqueo, La dignidad de los nadies, Argentina latente and La próxima estación, Solanas begins with Oro puro a diptych on the plundering of mineral resources (metals and hydrocarbons). This remarkable and powerful documentary denounces the open-pit cyanide mining operations carried out by multinationals in the northwest with the support of politicians, exposes the progressive contamination of soil and water, and exalts social resistance movements through moving individual and collective examples.