Presents the story of two female physicists whose discoveries led to the creation of the atomic bomb.

"The most beautiful experiment in the world" -- Little queen and the other baby -- On the battlefields -- Dr. and Mrs. -- Right on time -- Lost and found -- A lab of her own -- Radium: treatment or toxin? -- Heavy metals -- Fleeing Hitler's Germany -- Eureka! the discovery of fission -- Chain reaction: research on fission goes global -- War -- Overlooked -- Afterward: physicists, pacifists, realists.