1914. When Leonora Malham Brown's brother and fiancé head to the front, she must remain behind, unable to make use of her nursing experience in the Balkans. She is deeply frustrated, but there is another reason for her disappointment: despite her fondness for her fiancé, her heart belongs to dashing Colonel Sasha Malkovic. Their love can never be, for his family have promised him to another, but even while Leonora joins the First Aid Nursing Yeomanry, and bravely confronts typhoid outbreaks and Zeppelin bombs, she never gives up hope that they will be reunited . . .