Episode 24 // The Dark Tale of the Radium Girls

In the early 20th century, one of the best jobs for a young woman to land in America involved a new discovery: radium. The substance discovered by Marie Curie could be tweaked and turned into glow-in-the-dark paint.

But as the women working with the paint started falling ill, their employers began a calculated coverup that landed them in court -- and changed laws nationwide regarding the duty employers have to keep their workers safe.