East London, 1940. At the outbreak of war, hopeless romantic Prue Carmichael and her sister must leave their rural parish behind when their father is posted to a church in Stepney. To Prue, the blitz-ravaged streets of London seem an unlikely place for love to bloom - until a chance encounter throws rakish engineer Jack Quinn into her path. But as their connection deepens, his troubled past begins to emerge, and Prue realises Jack has secrets to hide....