Born with a club foot, nine-year-old Ada is locked in a room and can only gaze out the window at her younger brother playing with his friends in the London streets. Fears about bombs dropping, children are sent to the countryside to keep them safe. Together they join lonely, recluse Mrs. Smith, the only one to volunteer to take care of them. Ada cannot always read her benefactor’s intentions, but she learns to trust, just as she learns to ride a horse named Butter. From victor to victorious, especially after the battle of Dunkirk, this is a story of one girl’s courage.