Paris: A young woman is cornered on a deserted boulevard. Moments later she walks away, leaving her assailant for dead. Athens: An elderly man walks into the American embassy with a story to tell. Moscow: The most unlikely of traitors is uncovered by the most dangerous of men. Washington: A brilliant, unorthodox CIA agent must single-handedly connect the dots to stop an intricate house of cards from toppling in a cold war that's taken a terrifying new twist.