Lorna hosts a dinner party for her other son, an airman named Gene, who is home on leave to promote war bonds. However, Lorna's daughter, Sheila, shocks her when she arrives for dinner with an unexpected guest. A citywide blackout allows Gene to make an early exit under cover of darkness, preferring to spend his time with Kate and Gladys instead. As events turn out, they are glad that he did.

The arrival of new "bomb girls" bolsters the workforce at Victory Munitions, but tensions develop between the two groups of workers. Gladys finds herself on the receiving end of Gene's attentions and rebuffs him. Vera sets her sights on becoming office manager but has a rival who also wants the job and will do anything to get it. Meanwhile, Marco is convinced that somebody is trailing him.

Victory Munitions hosts a star-studded cavalcade to raise money for war bonds. Lorna becomes increasingly concerned about the volatile behavior of her son Gene, and Gladys begins to realize what kind of man he is-and how different a man James is. But has the realization come too late?