Dr. Jonathan Ransom, world-class mountaineer and surgeon for Doctors Without Borders, is climbing in the Swiss Alps with his beautiful wife, Emma, when a blizzard sets in. In their bid to escape the storm, Emma is killed when she falls into a hidden crevasse. Twenty-four hours later, he is the subject of an international manhunt and the target of a master assassin. His only chance at survival lies in uncovering the devastating truth behind the secret his wife kept from him and in stopping the terrifying conspiracy that threatens to bring the world to the brink of annihilation.