Charlotte is a British expatriate who has recently settled in Washington, D.C. with her second husband, but enviable dinner parties aren't the only thing she is planning. Meanwhile, Charlie Leigh-Hunt has been posted to Washington as a replacement for Guy Burgess, last seen disappearing around the corner and into the Soviet Union. Charlie is surprised to cross paths with Charlotte, an old flame of his, who, thanks to her gossipy parties, has a packed pocketbook full of secrets she is eager to share. Two decades later, in 1969, Joe Wilderness is stuck on the wrong side of the Iron Curtain, held captive by the KGB, a chip in a game way above his pay grade - but his old friends Frank and Eddie are going to try to spring him out of the toughest prison in the world. All roads lead back to Berlin, and to the famous Bridge of Spies.