As Philip and Elizabeth struggle to contain the risks from Paige's growing relationship with Matthew Beeman, the Centre sends them on an operation unlike any they've ever had before, straining their family and marriage to its limits.
Philip must consider his life with Martha and make a crushing choice from which there is no coming back.
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.
As Paige deals with last episode’s trauma, she sees her mother in a new light… and finds she has inherited some of her parents’ skills. Plus, has Oleg reached his breaking point with Stan?
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.
