1939. Kathleen Gallagher  is training to be a handywoman - an illegal midwife in West Belfast - when war is declared. As soon as a call goes out for volunteers to join the home front, she jumps at the chance to aid the ambulance service. She won't let her community down when they need her the most. When  Liam Flynn , the older brother of her best friend - and her very first kiss - also volunteers, the two of them are suddenly thrown together once more. Kathleen still dreams of the bells ringing in the New Year and the snow falling as their lips brushed, all those years ago. But she has a secret. And it's one that means they can never be together . . . But with the Belfast Blitz raining chaos and destruction, and the volunteers pushed to their limits, the pair can't help but grow closer, the secrets of their past starting to feel insignificant against the backdrop of war. In the middle of it all, can Kathleen overcome her worries, and finally let herself fall in love?