The Jennings struggling to contain the risks from Paige's growing relationship with Matthew Beeman. The Centre sends Philip and Elizabeth on an operation unlike any they've ever had before, straining their family and marriage to its limits.

Stan and Oleg wrestle with the harsh consequences of their complicated history as Philip and Elizabeth face a new mission with devastating implications for their country.

Philip and Elizabeth tell Paige more about the family business, but pressing new questions arise when an operation takes a ghastly and unexpected turn. Meanwhile, a sensitive package jeopardizes Oleg’s life back home.

Philip and Elizabeth have qualms about a new assignment, while a specter from Philip’s past creates unforeseen dangers. At the FBI, Stan makes a shocking play that could throw his career into turmoil.

A secret brings Elizabeth and Paige together. Back in Moscow, Oleg's own secrets put him under KGB suspicion and a new twist in the Morozov operation creates an opportunity that changes everything.

Paige’s snooping leads Philip and Elizabeth to make a choice that could shift the balance of their lives forever. Stan and Aderholt’s recruitment of Sofia suddenly bears fruit.

In the season finale, Philip and Elizabeth race against the clock as a life hangs in the balance, while Stan faces an uncertain future.