
After a robbery in his london shop, antique dealer John Mannering a.k.a. The Baron, is persuaded by Templeton-Green to work for Diplomatic Intelligence. He travels behind the Iron Curtin and meets his contact Cordelia. They encounter a corrupt Party member who attempts to frame them for the murder of his lover, the London jewel thief.
After a robbery in his london shop, antique dealer John Mannering a.k.a. The Baron, is persuaded by Templeton-Green to work for Diplomatic Intelligence. He travels behind the Iron Curtin and meets his contact Cordelia. They encounter a corrupt Party member who attempts to frame them for the murder of his lover, the London jewel thief.
Mannering attends the funeral of Jim Carey, a former army colleague. After receiving a message that Carey is still alive, Mannering agrees to go undercover for Templeton-Green. An elaborate plan to steal a $ 1 m jewel is bad enough but becomes worse when Cordelia is used as a hostage to ensure that the Baron cooperates with Carey.