Following President Ostrov's death, President Dalton and Elizabeth fear an impending power grab within the Russian government; Jay forms a plan to combat Russian propaganda.
Philip and Elizabeth struggle to contain the risks from Paige's growing relationship with Matthew Beeman, and the Centre sends Philip and Elizabeth on an operation that strains their family and marriage to the limits.
Stan and Oleg wrestle with the harsh consequences of their complicated history, and 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, and a sensitive package jeopardises Oleg's life back home.
Philip and Elizabeth have qualms about a new assignment, a spectre from Philip's past creates unforeseen dangers, and at the FBI, Stan makes a shocking play that could throw his career into turmoil.