What if Rosie the Riveter was a superheroine?
It's an idea that's been banging away in the back of my mind for a while.
It's the 1940's, and America has just entered the second world war. On the homefront, the women of the country do their part for the war effort by joining shipyards and munitions depot, building weapons and tools for the distant front.
As part of the effort, America's premiere superhero team joins the fight. However, crime doesn't stop in their absence. The situation results in the first superheroine appearing, to try and keep law and order in the United States by night, while working to support the troops during the day.
The story itself would probably mostly be about what happens after the war, when the men come back and try to get women "back in the kitchen", including the Justice League expies, who try to get said superheroine to knock it off now that the men are back... basically, the story of feminism, filtered through the genre lens of superheroes.