Preliminary reports of an Allied raid on the German-held port of Dieppe electrify the nation. Gladys has her own battles to fight, including dealing with her guilt over James's death. Lorna finally gets her long-coveted home telephone but finds that the phone can bring bad news as well as good.

The women of the Blue Shift begin to realize that enemies don't just limit their efforts to the battlefield. Gladys grows suspicious when a young woman asks her detailed questions about factory operations. She takes her concerns to Clifford Parry, the new head of security at Victory Munitions.

A visiting reporter highlights the disparity between women's and men's salaries at Victory Munitions, leaving Lorna with a tough decision to make. Gladys learns more about the shadow world of intelligence from Clifford, who also surprises her with facts she didn't know about her father.