When Britain declares war on Germany in 1939, Carolyn Maddison is still a schoolgirl. Her elder brother Alastair wastes no time in joining the RAF as a flying officer, and Carolyn decides that when she is eighteen she will follow him into the service by joining the Women's Auxiliary Air Force. While reporting to the Air Ministry in London she meets a good-looking, charismatic pilot, Charlie Wade, currently employed in propaganda work. He believes that with her calm demeanor and resilience, Carolyn should work as an Intelligence officer, and suggests she serve on an active bombing station. At her side throughout the courses and postings that follow is Lucy Gaston, naturally quick-witted and sparky, a perfect foil for her friend. The young WAAFs both obtain prestigious postings in 5 Group Bomber Command, where they perform the vital tasks of briefing and debriefing aircrew returning from operations over Germany. Lucy, an incorrigible optimist, falls head over heels for a member of a Lancaster bomber crew while Carolyn resists her feelings for its dashing pilot. She decides it's not worth the risk of loving a man in wartime...only to wonder if she has done the right thing when a new WAAF on the station sets her cap at him. For Lucy and Carolyn, life on a WWII bombing station brings drama, heartbreak and suspense in this touching love story.