In the tropical jungle of the Amazonas basin, on the uncertain boundaries of Venezuela and Brazil, the Yanomani natives say their name means simply «humans», and they are easily distinguished from all other tribes of that far reaching region. The film describes the natural elements of the region, and the perfect imbalance the Yanomani have established with them. [Note - The documentary precedes the invasion of the region by the Garimpeiros in the 1970s, that would upset that centuries old customs.]