The film opens in a remarkable flash forward to the future from 1944. Germany has been defeated and Adolf Hitler sits in a dark prison, writing his memoirs, “The Losing Fight,” working on chapter 25, ”The Hidden Army.” In1939 his experts in War Planning had told him in the coming War, the USA wasn't a threat because its armed forces were weak and it couldn't put a large army in the field and man defense plants at the same time. The very idea of American women going to work is scoffed at because they are “the most decadent on earth” & “spend more money in a year on cosmetics then their Navy spends on ships.” Boy were they wrong! American women soon made up 20% the work force in defense industries and replaced men in in 100s of thousands of other civilian jobs. They're shown working in everything from aircraft plants to steel mills. See how they made a huge difference!