It is 1941 and at quiet Harrowbeer, in Devon, a new airfield has been built. Amongst the squadrons moving in are pilots from Britain, Canada and Poland. The airfield, with its noise and its population, has a massive impact on the peaceful villages nearby - an impact that will affect some inhabitants for the rest of their lives. A Song at Twilight tells the story of three such women who will never forget Harrowbeer.