Tensions simmer between Philip and Elizabeth as they disagree over handling orders from the Centre. When Elizabeth loses key intel, Philip enlists Annelise on a mission with an unexpected outcome.

Elizabeth and Philip come together to deal with a mission gone wrong, but struggle to reconcile their ideologies; Stan welcomes a Soviet defector to America; Nina acclimates to her new living arrangements.

Danger mounts for Elizabeth and Philip as they get closer to the inner circle of the CIA Afghan Group.

Philip faces a moral dilemma while developing an asset. Philip and Elizabeth's friction escalates. Stan develops a theory with serious reprecussions for national security. Paige makes a surprising birthday wish.

Philip juggles the many women in his life while Elizabeth takes drastic measures to complete a mission. Stan asserts a plan to save Nina with an unlikely ally.

Gabriel has surprising information; Elizabeth begins to take family matters into her own hands.

Philip and Elizabeth feel the weight of a family secret while following up on the KGB's interests.

Martha and Clark's marriage meets its most challenging test yet; pressure on Philip intensifies.

Philip and Elizabeth struggle with the gravity of unexpected collateral damage.

Philip and Elizabeth deploy a plan for the C.I.A.'s Mujahideen visitors.

Philip and Elizabeth's home and work lives collide in new and dangerous ways. Nina struggles to figure out her next steps. Arkady assigns Oleg and Tatiana to an operation with uncertain potential.

Martha hosts an unexpected guest; Philip and Elizabeth must work a formidable Mujahideen commander.

Elizabeth and Paige take a trip that lands them in treacherous territory.