Presenter Ben Fogle takes five adventurous Englishmen on a surprise expedition. They're off to the Peruvian Andres, hiking toward Machu Pichu's mysterious sister city's Inca ruins. The testing voyage will pass the picturesque life of the natives and wildlife adapted to the unforgiving mountains.
Ben takes a group of Brittons to the Peruvian jungle on an exhausting trip to Inca mural pictographs, supposed to be the key to a lost city of gold. Weather conditions mean a day backlog from the start, imposing a murderous pace.