When the director of the CIA is handed a report from a Brazilian morgue confirming the death of an agent who disappeared into the Amazon jungle six years before, it doesn’t take him long to realize he’s got a big problem. In one top-secret folder, he holds a pre-expedition photo of the agent, waving the one arm he has left after a sniper’s bullet claimed the other. In a second classified folder, the director holds the morgue picture—a photo showing both arms resting at the agent’s sides. What happened down there? It’s up to a specially selected scientific and military team to find out—no matter what, or who, it takes.