When a factory worker ends up in the hospital after a faulty test-bomb explodes, the manager tries to pin the blame on the Blue Shift. While their leader, Lorna Corbett, and their materials controller, Marco Moretti, conduct their own investigations, Gladys tries to get the women to stand up for their rights. Meanwhile, new hire Kate Andrews moves to protect her false identity.

A surprise inspection puts Victory Munitions employees under the gun, giving Lorna an opportunity to finally rid the factory of Marco, and Gladys must defend herself against a thief to prove an accused Kate's innocence.

After the Blue Shift claims the honor of building Victory Munitions' millionth bomb, a film crew arrives to shoot a recruitment newsreel, and management chooses tough-talking farm girl Betty McRae as its star. Gladys finally confronts fiancé James Dunn about his past.