You Always Hurt the Ones You Love

A drama about the clandestine race to build the world's first atomic bomb in Los Alamos, N.M., centers on a self-destructive professor who is commissioned to help lead the Manhattan Project in the series opener.

The Prisoner's Dilemma

Frank attempts to save his team, and pays the price; at the same time, the wives get creative trying to make life on the Hill more interesting.

The Hive

The loss of one of their own leaves the community reeling; and new security measures interfere with the work being performed by the scientists.

Last Reasoning of Kings

The arrival of a high-profile guest shakes things up. Frank is haunted by his past.

A New Approach to Nuclear Cosmology

Frank clashes with Charlie to protect Babbit, who has become the subject of an investigation.

Acceptable Limits

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

The New World

Helen and Charlie deal with a crisis; Abby embarks on a journey of self-discovery.

The Second Coming

Both Charlie and Frank face serious questions as to the future of their projects.

Spooky Action at a Distance

Frank and Charlie hatch a plan.

The Understudy

An unexpected visitor arrives on the Hill.

Tangier

A development overseas re-invigorates the hunt for a spy on The Hill. Charlie and Abby make a sacrifice when the plan with Frank is threatened.

The Gun Model

Akley becomes vulnerable when he tries to fix Thin Man's shortcomings.

Perestroika

Frank is offered a life-changing opportunity. At the same time, the U.S. Army put Charlie on the hot seat.

Damnatio Memoriae

Charlie is forced into a new leadership role in the race to build the world’s first atomic bomb.

Fatherland

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

The Threshold

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

Overlord

Oppenheimer puts Charlie in a precarious position.

The World of Tomorrow

Frank attempts to navigate his new place on the Hill.

33

The scientists and the Army battle for control of the bomb.

Behold The Lord High Executioner

The hunt for a Soviet spy turns deadly.

Human Error

As the project falters, Charlie turns to an unlikely partner for help.

Brooklyn

Days before the world's first nuclear explosion, everyone races to secure their place in history.

Jupiter

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