It's 1942, and London remains under constant threat of enemy attack as the second world war rages on. In the Bethnal Green neighborhood, Nellie Morris counts every day lucky that she emerges from the underground shelters unharmed, her loving family still surrounding her. Three years into the war, she's grateful to hold onto remnants of normalcy, her job as assisting the mayor and nights spent at the local pub with her best friend. But after a chance encounter with Ray, an American airman stationed nearby, Nellie becomes enchanted with the idea of a broader world. Just when Nellie begins to embrace an exciting new life with Ray, a terrible incident occurs during an air raid one evening, and the consequences are catastrophic. As the truth about that night is revealed, Nellie's world is torn apart. When it seems all hope is lost, Nellie finds that, against all odds, love and happiness can triumph.