Hayley Atwell relates the story of a KGB agent embedded deeply, too deeply, in US life, with Jack Barsky, a.k.a. Albrecht Dittrich. After many years undercover in New York, Barsky got the signal that he was compromised, yet by then he had an American wife and children. What would YOU do? From SPYSCAPE, the headquarters of all things spy. A Cup And Nuzzle production. Producer: David Waters. Series producer: Gemma Newby. Music by Nick Ryan.