Immersive history series focusing on one of World War II's most covert organisations, Britain's Special Operations Executive. A group of modern-day volunteers undertake the SOE agent training programme.

Fourteen modern day recruits see if they could have become unofficial spies and secret agents in occupied 1940s Europe. Following real training exercises from the British Archives, these men and women learn combat, surveillance and survival skills and test their abilities in training scenarios. Only the best will make it to the final episode. Real missions and personalities from wartime are also featured, connecting the training to actual objectives and operatives.