1945年的一天,英国公主玛格丽特和妹妹伊丽莎白被批准可以离开白金汉宫一夜。于是她们在这一夜经历了浪漫邂逅,也遭遇了各种危险On V.E. Day in 1945, as peace extends across Europe, Princesses Elizabeth and Margaret are allowed out to join the celebrations. It is a night full of excitement, danger and the first flutters of romance.