The full story of Aston House in the Second World War has never been told before.

Its activities were top secret and as important to the Allied war effort as those of Bletchley Park, but in a different way. Situated near Stevenage, Aston House was one of many British country houses requisitioned during the Second World War by the Special Operations Executive (SOE). Born out of Bletchley Park, where it began life as SIS Section 'D' (for Destruction), Station 12's scientific and military personnel invented, made and supplied 'toys' for the Commandos, Special Boat Service, SAS, and resistance groups. Included in their deadly arsenal of weapons were plastic explosives, limpet mines, pressure switches, tree spigots, incendiary bombs, incendiary liquids and arrows, and a variety of time fuses. They worked on the tools for famous operations, such as the St Nazaire and Dieppe Raids, and the assassination of Himmler's deputy in Prague. Also revealed are the human stories of personnel stationed in this extremely remote village and the explosive pranks they played on each other, and certain visitors, which add some light relief to their destructive purpose.