In the early 20th century, amidst the glitz of the radium craze, young women work in factories painting luminous watch dials with the deadly substance. Celebrated as 'The Radium Girls,' these workers glitter like fireflies, their job a symbol of progress and modernity. But their dreams turn dark as they begin to suffer from ghastly illnesses caused by the radium. As the health of these women deteriorates, their employers deny any wrongdoing, dismissing their concerns. The toll of radium exposure mounts, and these workers must battle not only their failing health but also a callous industry to have their voices heard. 'The Radium Girls' uncovers the struggles and triumphs of these heroines as they fight for justice and accountability, in a heart-wrenching narrative that honors their legacy and the advancements in workers' rights that followed their landmark legal battles.