After the incredible success of Tribe, explorer Bruce Parry embarks on an epic journey down the Amazon - the world's greatest river - which follows a route through the Earth's largest forest, has the most bio-diverse habitat on the planet and is home to some of the most remote tribes on Earth. It's an amazing enterprise, as Parry travels over 6,000 kms from the mountain source of the river to the beach where the river meets the Atlantic Ocean. Every step of the journey uncovers an amazing story as he meets the tribesmen, coca growers, loggers, ranchers, millionaires and illegal miners of the region. Whether travelling with llama herders, playing football in drag at Carnival, imbibing hallucinogens with a shaman, riding a wild horse at a rodeo or sleeping on a hammock high in the canopy of the forest. Parry's efforts are boundless and his enthusiasm is infectious. The Amazon that he discovers is a beautiful region full of fascinating people, but in helping to harvest coca, joining a gold rush and meeting those forcibly evicted by logging gangs, he also experiences the danger and lawlessness of much of the area, the desperate plight of some tribes and the precarious state of the forests known as the Earths lungs.