Agent Erica Shepherd was the best code-breaker in the CIA, until she became the most notorious traitor in America. She’s a killer, and FBI agent Will Keaton knows it. But he needs her help to stop a terrorist. No one is as they seem. There are operations within operations, and allegiances can’t be trusted. With all the psychological tension of a cold war spy thriller, this is guaranteed to have you on the edge of your seat.