Philippe Sands, leading international law and human rights barrister, Professor of Law at UCL and presenter of The Ratline, is joined by Dave Butler BEM, a former British spy active in Berlin during the Cold War. In an episode that covers Nazi plots, the redrawing of boundaries and incursions over enemy lines, we also hear from the Spymaster himself, David John Moore Cornwell, AKA John le Carré, thanks to archive audio recorded by his neighbour Philippe.

Series Producer: Paulo Garrett. A Cup and Nuzzle Production. From Spyscape, the home of secrets.