The royal family mourns the passing of Winston Churchill. The United Kingdom ushers in a new prime minister, the Labour Party's Harold Wilson whom Prince Philip and Queen Elizabeth hear might be a Soviet spy.

While Princess Margaret and Lord Snowdon visit the USA, the queen, at the bidding of Harold Wilson, asks them to make a side trip to Washington, D.C. to ask President Johnson for financial assistance for the United Kingdom.

Margaret Thatcher visits Balmoral but has trouble fitting in with the royal family, while Charles finds himself torn between his heart and family duty.

While Margaret Thatcher struggles with the disappearance of her favorite child, Elizabeth reexamines her relationships with her four children.

As Thatcher's policies create rising unemployment, a desperate man breaks into the palace, where he finds Elizabeth's bedroom and awakens her for a talk.

Grappling with mental health issues, Margaret seeks help and discovers an appalling secret about estranged relatives of the royal family.

Charles is caught in a deadly avalanche, prompting both him and Diana to reevaluate their commitment to their troubled marriage.

Amid a growing challenge to her power, Thatcher fights for her position. Charles grows more determined to separate from Diana as their marriage unravels.

Between a fire at Windsor Castle and tensions in her children’s marriages, the Queen commemorates and reassesses her 40 years on the throne.

Faced with the fallout of an intercepted call with Camilla and the consequent kickback to his marriage, Prince Charles must navigate a scandal.

Eager to lead a newly democratic Russia, President Yeltsin tries to win the Queen's support while she navigates new rifts in her marriage with Philip.

The Princess of Wales contends with the repercussions of her statements. The Queen asks the Prime Minister for his help in a delicate family matter.

Cameras flash and a media circus swirls as Diana and Dodi spend more time together. In retaliation, Charles stages a fatherly photo op with his sons.

Dodi's father urges him to propose, but marriage is the last thing on Diana's mind. Later, a high-speed car chase with paparazzi ends in disaster.

As the world mourns, the Queen's silence prompts ire and warnings from a grieving Charles. How will she rise to the occasion and mother her nation?

The Queen gives Charles the green light to wed Camilla. Tasked with planning her own funeral ahead of her 80th birthday, she faces an existential crisis.