Rachel Brosnahan

Charlie and Frank both face serious questions about the future of their projects.

A new era is ushered in with the first test of an atomic weapon.

Liza faces off against Darrow as Abby learns a secret about Oppenheimer.

Set during WWII in Los Alamos, New Mexico, secrets dominate every facet of family and professional life as scientists Frank Winter and Charlie Isaacs compete to create the world's first atomic bomb.

Charlie and Frank are forced to work together for the good of the project. When they run into a problem, Frank turns to an unconventional resource.

Frank discovers the real reason he's been taken captive.

Frank seeks medical answers. Charlie and Helen travel to survey an off-site reactor.

Frank tries to navigate his new place on The Hill.

The hunt for a Soviet spy turns deadly.

Akley exposes himself when he tries to fix Thin Man's shortcomings.