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.

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

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.

Frank and Charlie hatch a plan.