Peruvian cocaine is exported all over the world by winding paths. So-called "Mochileros", young men who carry kilos of coke in their backpacks through the jungle, take over the first stage of the transport. The goal: a highly dangerous drug transshipment point in the border area between Peru, Bolivia and Brazil. Reporter David Beriain accompanies the smugglers on their risky forced march, in which the group is in danger of being attacked or shot at any moment. A contact man in Manaus also reports on the billion-dollar business with white powder and the merciless laws of the favela.