Amazon Underworld

As the waters of the Amazon and its tributaries reach their lowest, torrential rain begins to beat down with brutal force. In a few months' time, the forest will be submerged under almost thirty meters of water: enough to swallow up a ten-story building! The forests fauna have to struggle to survive. This documentary tells a story of competition and dangers, unease and courage; a story that will inspire every viewer and remain engraved in their memory for a long, long time... (National Geographic)