In 1941, Rudolf Hess flew to Britain with proposals for ending World War II. He was arrested and sent to jail. Or was he? The true nature of his mission and the peace plan he carried out have never fully been revealed until now. Was the real Hess actually sent to England or was the man captured an imposter? How much did Hitler and Churchill know about this affair? Eyewitness testimony and documents, including Hess's complete medical records and family correspondence, shed light on this mystery.