The war is drawing to a close, but the munitions girls are still hard at work in the factory. Gladys, who's been promoted to overseer, has been feeling lonely lately. Her daughter has moved away, and a lot of her friends have left Gosport too. Then an act of kindness towards Goldie, a homeless teenager, provides Gladys with a new friend and lodger. But Goldie has run away from her dangerous family - a group of local gangsters and black-market smugglers, including a particular thug, a pimp, who is determined to make the girl his. Can Gladys keep both of them safe while dealing with her own unexpected pregnancy?