Alex Gerlis joins me to discuss spying during the war, and, more importantly (!) football of the period. Alex supports Grimsby Town, and I support Southampton, but which team would the Nazis have taken an interest in? We also discuss Frank Foley, the man who saved thousands of Jews, and Klaus Barbie, the Nazi murderer based in France. Finally, Alex chats about his influences, and the man he has been compared to, John Le Carré.

Alex is the author of Agent in Berlin and his latest, Agent in Peril.