Bob Lee travels across the country in order to find the shooter; Julie deals with a family betrayal; Nadine contacts a Ukrainian reporter who can explain the conspiracy; and Isaac questions his allegiance.
Bob Lee Swagger and wife Julie join his former Marine unit in Germany and narrowly escape a deadly terrorist attack. FBI Agent Nadine Memphis, meanwhile, takes a job in Washington with Patricia Gregson.
Bob Lee attempts to put an end to Atlas, all while trying to save his marriage and tie up the remaining threads from his past. Isaac, Nadine, and Harris find new roles for themselves in D.C. Series Finale.