Wade Davis, acclaimed anthropologist, journeys into hidden worlds to find cultures that have preserved their ways of life in the face of modern society.

National Geographic ventures into the rain forest with Wade Davis for an up-close look at the Barasana river people, a group believed to be descendents of the legendary "lost" Amazonians. Davis embarks on a symbolic journey that will honor the group's ancestors and witnesses the rituals that demonstrate respect for this tropical landscape.