In June 2014, the world was transfixed by images of men emerging from the deepest Amazonian rainforest for the first time. They were among the last people living on our planet who had had no contact with the outside world. In this documentary, film-maker Angus Macqueen gains access to this tribe, to Xani and Shirimaku and their families, to find out how they lived, why they had remained isolated for so long and what finally brought them out of isolation.