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; Stan monitors Zinaida; Agent Aderholt challenges Agent Gaad on a crucial operation; Arkady tasks Oleg and Tatiana with gathering intel.
Elizabeth works on freeing environmental activists held in China for spying while the identity of the cyber stalker maybe be someone from Elizabeth's past.
A state dinner for the US and France is under threat after a CIA operative is captured by French intelligence.
When a patient's father and partner can't agree on his health care, Pete makes a decision; Jake suspects Amelia is being tempted to substance abuse; Addison and Sam have difficulty defining their relationship.