Mapleton, New York, small-town police chief Kevin Garvey juggles personal and professional challenges as the three-year anniversary of The Departure - when millions of people worldwide suddenly vanished - approaches.
A German assassin has been ordered to kill American scientists involved in the ABM programme. After the mission is aborted, Phillip and Elizabeth must stop him and prevent a possible war.
Phillip and Elizabeth Jennings seem like any other American married couple, but they are actually highly trained Soviet spies, who must kidnap a high-ranking defector and return him to Russia.
Phillip is reunited with an old flame and the reunion leaves him questioning the nature of his relationship with Elizabeth. Meanwhile, Stan and Nina finally give in to temptation.
Phillip and Elizabeth shock their children when they announce they are separating. Meanwhile, Gaad orders an unauthorised mission to grab a KGB agent after Amador goes missing, with grisly consequences.
