Frank Winter and his team have been recruited to work on a project even they could know nothing about until their arrival. Once inside “The Hill,” a middle class bubble on a dusty foothill in the New Mexico desert, they begin to sense that this is no ordinary assignment. In fact, they are living in a town with the world’s highest concentration of geniuses, yet it can’t be found on any map, a place where men and women are torn between duty and their moral values, husbands and wives conceal the truth from each other and their families, the military keeps secrets from the scientists they chaperone, and the scientists keep secrets from each other.

Frank's attempt to save his team has consequences; the wives find creative ways to survive.

The community reels after losing a member, while new security measures affect the scientists' work.

A high-profile guest shakes things up on The Hill; Frank is haunted by his past.

Babbit becomes the subject of an investigation; Frank clashes with Charlie.

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

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

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

Frank and Charlie hatch a plan.

The Hill receives an unexpected visitor.

A development overseas invigorates the hunt for a spy on The Hill.