It's Brussels, 1915. A beautiful young Belgian woman, Louise, is being pursued by the Germans when she meets Ned Scott, a British army major also trying to flee. He is badly injured, and the unlikely pair finds themselves at a hospital run by the famous Edith Cavell, who agrees to treat the major while offering them both refuge. However no one is safe under the terrifying shadow of German occupation and the secret police are convinced Nurse Cavell is hiding foreign soldiers. As Louise finds herself falling for the major, details of her true identity emerge, causing the Germans to pursue her even more relentlessly. Meanwhile the Major is torn between his desire to stand by the brave, heroic Edith and the knowledge that he must escape. Observed wherever they go, is there anyone these three people can trust? And will love have the power to overcome the horrors of war?