Season 1

01 You Always Hurt the Ones You Love Episode 127th July 2014 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. 02 The Prisoner's Dilemma Episode 23rd August 2014 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. 03 The Hive Episode 310th August 2014 The loss of one of their own leaves the community reeling; and new security measures interfere with the work being performed by the scientists. 04 Last Reasoning of Kings Episode 417th August 2014 The arrival of a high-profile guest shakes things up. Frank is haunted by his past. 05 A New Approach to Nuclear Cosmology Episode 524th August 2014 Frank clashes with Charlie to protect Babbit, who has become the subject of an investigation. 06 Acceptable Limits Episode 631st August 2014 Frank seeks medical answers; Charlie and Helen travel to survey an off-site reactor. 07 The New World Episode 77th September 2014 Helen and Charlie deal with a crisis; Abby embarks on a journey of self-discovery. 08 The Second Coming Episode 814th September 2014 Both Charlie and Frank face serious questions as to the future of their projects. 09 Spooky Action at a Distance Episode 921st September 2014 Frank and Charlie hatch a plan. 10 The Understudy Episode 1028th September 2014 An unexpected visitor arrives on the Hill. 11 Tangier Episode 115th October 2014 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. 12 The Gun Model Episode 1212th October 2014 Akley becomes vulnerable when he tries to fix Thin Man's shortcomings. 13 Perestroika Episode 1319th October 2014 Frank is offered a life-changing opportunity. At the same time, the U.S. Army put Charlie on the hot seat.