Series in which a group of athletic adventurers from the UK and the USA compete for glory against tribal champions in some of the remotest corners of the globe, with the ultimate aim of being crowned the last man standing. They go to live with the Sepik, a jungle tribe of Papua New Guinea, where they'll compete in the biggest canoe race of the year. But to succeed they also have to learn to sleep in snake-ridden shelters and survive crocodile-infested waters.