Philip and Elizabeth struggle with the gravity of unexpected collateral damage; Stan and Oleg hatch a risky plan to help save Nina.
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.
Elizabeth and Paige take a trip that lands them in treacherous territory; Philip turns to an unlikely source for solace; Stan's plan to save Nina culminates in unforeseen ways.
Danger mounts for Elizabeth and Philip as they get closer to the inner circle of the CIA Afghan Group; Stan monitors Zinaida; Agent Aderholt challenges Agent Gaad on a crucial operation; Arkady tasks Oleg and Tatiana with gathering intel.
Philip faces a moral dilemma while developing an asset; Philip and Elizabeth's friction escalates; Stan develops a theory with serious repercussions for national security; Paige makes a surprising birthday wish.