Agathe, headed back to Milwaukee to investigate John, crosses paths with Alice. Tom receives critical new intelligence that may give him the upper hand in his plan to influence the Iranian election.
John gets closer to completing his perilous assignment, only to have matters jeopardized by a childhood mistake. Friends get involved in an unprecedented and gravely consequential way.
John returns to Luxembourg where his dedication to his father is put to the test, just as Agathe gathers final evidence that may allow her to learn the truth about John.
Agathe interrogates John just as Edward struggles to establish his brother's alibi. A surprise visitor joins the McMillan duck hunt in a last minute appeal to Leslie to allow John back on the travel team.
In Luxembourg, Leslie attempts to set John up for failure by increasing his workload just as John's real job requires immediate and critical action. An old friend arrives and further complicates John's life.
Agathe's case against John begins to mount while John undertakes a desperate attempt to get his father's plan back on track. Meanwhile, Leslie's hostility toward John reaches new heights.
John's effort to retrieve evidence brings him dangerously close to Agathe. Tom arrives in Luxembourg to help John catch his breath only to ask more of him.
Edward's captor is revealed. John prepared for a dangerous act in his first step toward the assassination of Cantar Walley, just as Walley's elite security team arrives in Paris.
An unexpected day off provides the opportunity for a last-minute bachelor party. Collective inebriation follows. John fully embraces the celebration with his wife and friends until the time line for his mission abruptly moves up.
