Plot: We will travel to Asia with Nicolas Hulot along the Mekong, a river over 4,000 km long, to discover the people who still live along the river. We will follow him into caves, inside waterfalls, in Buddhist temples, flying over forests and floating houses, to reach the lost city of Beng Melea, a short distance from the historic site of Angkor Vat, the famous temple-mountain, with its five ringed towers, erected at the time our cathedrals were built and immersed in the jungle