Helen Fry reveals the history of the elaborate WWII intelligence operation whereby Hitler’s generals were tricked into giving away Nazi secrets.

Orchestrated by MI6 spymaster Thomas Kendrick from his headquarters at the Tower of London, German prisoners’ cells were bugged and listeners installed behind the walls to record their conversations. These prisoners were then wined and dined at stately-homes-turned-prisons to encourage talk.

Helen discovers the inner workings of this stupendous bugging operation with Robin Lustig.

Helen Fry is an historian and biographer and the author of more than 20 books focusing on intelligence, prisoners of war and the social history of WW2.

Robin Lustig is an award-winning journalist and broadcaster who presented The World Tonight on BBC Radio 4 for more than 20 years.