BOATING SHOTs from riverboat travelling upstream on Rio Jordao in Amazon Basin, dense fog; shots of a few passengers, shots of dense vegetation on riverbank (4:59). Various shots of captain repairing outboard motor on riverbank, changing oil, draining used oil directly into river, FOLLOW SHOT of oil slick moving downstream (4:19). BOATING SHOTs of full moon over jungle (1:50).