Glasgow, 1943. After becoming pregnant out of wedlock, only to find out her betrothed was already married, Kathy feared for her future. Her mother agreed to pass off baby Dennis as her own, treating Kathy as his older sister instead. Then a chance meeting with Alisdair, a handsome RAF airman, changes everything. They grow close quickly, but when Kathy believes Alisdair has discovered her secret, she runs away from heartbreak by joining the Auxiliary Territorial Service. The work is challenging, and Kathy finds her new home in Yorkshire very different to the Glasgow tenement she grew up in, but she finds great friendships with women who know nothing of her past. And there is no shortage of lovely soldiers to dance with in the evenings. But despite being surrounded by new faces, she can't get Alisdair - or her secret child - out of her mind . . .