When Peggy saves a stray dog from near-death, a beautiful friendship begins. Nothing can come between them - until war is declared.

Peggy is evacuated to safety, but Beau is left behind in London, where he becomes the most unexpected of war heroes. Night after night, as bombs rain down and lives are destroyed, Beau searches the ruins of the city, rescuing countless survivors.

But then tragedy strikes and Beau must set off on an incredible journey to find his beloved Peggy ...