From the back of the book:
"Glory Days is the first era book for Brave New World, the roleplaying game of superpowered heroes in a fascist America. It comes complete with everything you need to play Brave New World in the opening days of America's involvement in World War II: new combat rules, new weapons and vehicles, profiles for dozens of deltas who can help or hinder your cause, and 10 brand-new power packages good for use in any era."
"It is time to make your Uncle Sam proud. Enlist now!"