Teddy tries to recreate balance but then a trip to France to see the place where Ned fell has unforeseen consequences. Polly, grieving for Erich Kuppel, persuades her father to send her to New York, and despite Prohibition, the great city pulses with life and promises her a fresh start. Jessie and Bertie, detained in London by Bertie's job, long to start their new life together. Jack becomes a pioneer of civil aviation, but when the company fails he's faced with unemployment, with a growing family to support. As they all seek relief from their own memories, the Morland's witness a new world struggling to be born out of the ashes; and as long as the music lasts, they will keep on dancing.