Two young immigrant women. One historic strike. And the fire that changed America.

In 1909, shy sixteen-year-old Rosie Lehrer is sent to New York City to earn money for her family's emigration from Russia. She will, but she also longs to make her mark on the world before her parents arrive and marry her to a suitable Jewish man. Could she somehow become one of the passionate and articulate "fiery girls" of her garment workers' union?

Maria Cirrito, spoiled and confident at sixteen, lands at Ellis Island a few weeks later. She's supposed to spend four years earning American wages then return home to Italy with her new-found wealth to make her family's lives better. But the boy she loves has promised, with only a little coaxing, to follow her to America and marry her. So she plans to stay forever. With him.

Rosie and Maria meet and become friends during the "Uprising of the 20,000" garment workers' strike, and they're working together at the...