The crown jewel of Her Majesty's Secret Intelligence Service, Agent Lorraine Broughton is equal parts spycraft, sensuality and savagery, willing to deploy any of her skills to stay alive on her impossible mission. Sent alone into Berlin to deliver a priceless dossier out of the destabilized city, she partners with embedded station chief David Percival to navigate her way through the deadliest game of spies.

Technological advances have escalated Cold War tensions to an all-time high, and undercover KGB operatives Elizabeth and Philip Jennings face the growing threat of discovery. As their assignments grow more deadly, their family is in more danger, and their loyalties are tested like never before.