A CIA agent, ostensibly on vacation, is found dead on cold, barren land in Wyoming. Before dying, the agent texted a terrifying, if cryptic, message to John Drake. Drake, Evangeline Hardy and fellow agent Astrid Norstrom head for Wyoming to discover who killed their friend and what his message means. Step by step, they will uncover a decades-old secret stemming from the Cold War and a conspiracy that spans two continents. If they cannot prevent disaster, an apocalypse will occur and turn vast regions of the West into a death zone.