A new era is ushered in with the first test of an atomic weapon.
Days before the world's first nuclear explosion, everyone races to secure their place in history.
As the project falters, Charlie turns to an unlikely partner for help.
The hunt for a Soviet spy turns deadly.
The scientists and the Army battle for control of the bomb.
Frank attempts to navigate his new place on the Hill.
Oppenheimer puts Charlie in a precarious position.
Liza faces off against Darrow as Abby learns a secret about Oppenheimer.
Frank discovers the real reason he's been taken captive.
Charlie is forced into a new leadership role in the race to build the world's first atomic bomb.