Kate Munroe, codename Ruby, is a British agent deep undercover inside the KGB. As such, her life was always destined to be complicated and dangerous. When two men commit suicide in a Moscow Metro station, Ruby’s KGB masters insist that a renegade Militia captain conducts the investigation. With an ulterior motive to safeguard, Ruby is ordered to observe the Militia investigator. He’s a brilliant investigator but has a questionable political record, a reputation for pursuing criminals like a dog after a bone, and Ruby’s masters don’t trust him.When Ruby discovers the deaths are linked to another investigation, she is forced to decide where her loyalties lie. Her decision unleashes a wave of suspicion and uncovers a dark secret buried deep in her past. Caught in an intricate web of deceit, intrigue, and questionable loyalties, Ruby’s only option is to expose the truth about Operation Blackbird.