It is 1940 and American reporter Frankie Bard is making a name for herself broadcasting the horrifying truth of the bombing raids on London during the Blitz. Frankie's dispatches crackle across the Atlantic imploring her countrymen to pay attention. She's convinced that if she can get the right story the Americans will join the fight.

Listening to Frankie is Iris James, postmistress in a peaceful coastal town on Cape Cod. She knows that it's only a matter of time before the war arrives. Emma Fitch, the doctor's new wife, also tunes in to Frankie's nightly bulletins, desperate to hear news of London where her husband is helping out.

But one night in London the fates of all three women cross when Frankie finds a letter - a letter she vows to deliver.