Valerie Hobson ("Diana") is widowed during WWII - her late husband, the local Member of Parliament. After an extended period of mourning that shows little sign of ending, her nanny Flora Robson sets a few wheels in motion that results in her former charge being elected to succeed her husband in Parliament. Initially nervous, she ultimately rises to the task, and manages to fall in love again - this time, thanks to a timely air-raid, with "Richard" (James McKenchnie). Then an altogether different sort of bomb drops - and she must rewind her life some four years and deal with some truly…