With a song in your heart, soldier on ... 1943. A German aircraft crashes into a house in Worthing, and causes complete devastation to the local community. Three strangers meet for the first time that day – Nancy, Beth and Val. Val’s little girl Sally has been hurt in the crash and is rushed to hospital. As she comes through her ordeal, she finds her mother and her two new ‘aunties’ by her bedside. The three new friends quickly bond over shared experiences; all their husbands are overseas in the fighting forces. They also have the same love of singing and soon form The Sussex Sisters, Worthing’s answer to the Andrews Sisters, to boost morale in in dance halls and canteens all over the south coast. When D-Day finally arrives, it’s the promise of a brighter future they have all been longing for. But the men that return home are altogether different from the husbands they waved off. How will they respond to their wives’ new-found fame? How will the women live alongside these distant, damaged men? With secrets, revelations and surprises on the horizon, the friends will need each other more than ever.