FLANDERS, March 1915. Elsie Knocker and Mairi Chisholm, both avid members of the British Motor Gypsy Club, get ready to serve in the Flying Ambulance Corps, created by Major Hector Munro to spirit the wounded from the Flanders battlefields to field hospitals in the rear. The two young women are joined by Lady Dorothy Fielding, the wife of the Earl of Denbigh, and a beautiful, 22-year old American nurse, Helen Gleason. But mere weeks after their deployment...