In the 1960s, Texaco named a small town in the Ecuadorian jungle Lago Agrio, a translation of "Sour Lake," the Texas town where the oil company was founded. This name forms the framework from which this short film was created, shot from the outskirts of this town to the Colombian Andes, where the jungle vegetation begins to merge with the mountains. These geographical locations, interconnected for centuries, are beset by numerous economic, ecological, political, and territorial issues that have been brewing since the 16th century, when Spanish conquistadors explored them in search of El Dorado. It is through these geographical, social, and imaginary intersections that Sour Lake examines the relationships between these territories and their inhabitants.