In 1950, in the middle of the Guyanese jungle, indigenous people find the travel journal of French explorer Raymond Maufrais. Seventy years later, young adventurer Eliott Schonfeld reads the journal and sets out to follow Maufrais's path into the rainforest. What begins as a journey into the past, soon becomes a test of Schonfeld's mental and physical limits as he comes dangerously close to meeting the same dismal fate as Maufrais.