New Year's Eve, 1940: Evie Chase, the beautiful debutante daughter of an adoring RAF commander, gazes out at the sky as swing music drifts from the ballroom. With bombs falling nightly in London, she resolves that the coming year will bring more than just dances and tennis matches. She is determined to do her bit for the war effort.

2nd January, 1941: Evie curses her fashionable heels as they skid on the frozen ground of her local airfield. She is here to volunteer for 'The Beauty Chorus', the female pilots who fly much-needed planes to bases across the country. Soon, she is billeted in a tiny country cottage, sharing with an anxious young mother and a naive teenager.

Thrown together by war, these three very different women soon become friends, confidantes and fellow adventuresses. But as they take to the skies, they will also face hardship, prejudice and tragedy. Can their new-found bond survive their darkest hours?