It is the late autumn of 1942. Our indomitable heroine Poppy Redfern is thoroughly immersed in her new job as a scriptwriter at the London Crown Film Unit, which produces short films featuring British civilians who perform acts of valor and heroism in wartime. After weeks of typing copy and sharpening pencils, Poppy is thrilled to receive her first solo script project: a fifteen-minute film about the Air Transport Auxiliary, known as Attagirls, a group of female civilians who have been trained to pilot planes from factories to military airfields all over Britain. Poppy could not be more excited to spend time with these amazing ladies, but she never expects to see one of the best pilots die in what is being labeled an accident. When another Attagirl meets a similar fate, Poppy and her American fighter-pilot boyfriend, Griff, believe foul play may be at work. They soon realize that a murderer with a desire for revenge is dead set on grounding the Attagirls for good...