Snezhana Chernova

As Philip and Elizabeth grapple with a momentous decision, Tuan takes matters into his own hands in the Morozov operation. Back in Russia, Oleg’s investigation collides with the realities of the Soviet system.

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?

Philip and Elizabeth are thrown off balance when things with Tuan take an unexpected turn. Meanwhile, Henry makes a startling proposition and Stan has a disturbing encounter with Frank Gaad’s widow.

Philip and Elizabeth receive surprising news about Henry -- and shattering news about a past operation. Stan might be falling in love, but Philip wonders if something darker is going on.

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.

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.