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.
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.
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.
