Philip tries with increasing desperation to get rid of a sensitive and dangerous package as family tensions in the Jennings House reach a boiling point when Paige shares a secret of her own.

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 in a high-stakes race against the FBI to recover a hazardous package. Will they get there in time? And will Paige follow her parents into the family business?

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.

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

It’s autumn, 1987, and as a major arms control summit looms, Elizabeth is pushed to her limits as never before. Philip, meanwhile, has settled into running the newly expanded travel agency – until an unexpected visitor makes a disquieting request.

Elizabeth wrestles with competing loyalties, and Philip has an encounter that turns into much more than he had bargained for.

In the series finale, the Jennings face a choice that will change their lives forever.