London 1938 - Gracie Thompson has a job, a loving family, a twin brother who drives her insane and a great friend. A chance meeting introduces her to the love of her life. But the storm clouds are gathering, Europe is teetering on the verge of war and threatening to destroy everything Gracie holds dear. When war arrives her family are split up, her lover is in daily danger and her life is threatened. Her father and boyfriend believe a woman's place is in the home but she is equally determined to do her duty for King and Country.

She succeeds in her ambition to do her bit but at what cost? Will she ever see her twin again? And can she live with the knowledge her actions may have led to the loss of the one man she loves. Not only could he die, but he may do so believing she never loved him. Is she brave enough to pull the life she wants back from the abyss?