Tonia has lived all her life in the quiet Scottish countryside and can't imagine herself anywhere else. But when her beloved older sister gets married and moves away, Tonia begins to wonder if there aren't bigger things on the horizon for her too.

The advent of World War II brings Tonia briefly to the heart of London, where the roar of fighter planes echoes through the night and bombings are a constant threat―but just as she's settling into her new life, a heart-breaking tragedy sends her back home to Scotland. With new friends by her side, Tonia thinks she may have finally found the place where she is supposed to be. But the war interferes again with her plans, and she fears that the person she loves most may be lost to her forever.