Catherine and Potemkin experience growing pains in their relationship, as Potemkin’s push for expansion puts him at odds with Minister Panin.

As a new day dawns, Moordale’s fate hangs in the balance. Aimee spills. Eric confesses. Otis haunts the hospital. Honesty matters now, more than ever.

As the Soviets test the H-bomb, both Churchill and Eden have major health crises. Angry about her inadequate education, Elizabeth hires a tutor.

Why is someone destroying images of Margaret Thatcher? Is there a madman on the loose? Or is there a much darker purpose at work?

Why is someone destroying images of Margaret Thatcher? Is there a madman on the loose? Or is there a much darker purpose at work?

When intelligence agents around the world come under attack from alien forces, MI6 turns to the only person who can help- a certain Doctor and her companions. As they travel…