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.

A horrible disaster in the Welsh town of Aberfan leaves scores of children dead, but when the Queen takes a week to decide to visit the town to offer solace to its people, she must confront her reasons for postponing the trip.

Left without a home by a political coup in Athens, Philip's eccentric mother, Princess Alice of Greece, is invited to live in Buckingham Palace by the Queen.

The 1969 moon landing occasions a mid-life crisis in Prince Philip, who thinks of the adventures he has missed as the Queen's consort.

As her marriage falls apart, Princess Margaret finds solace in the arms of a much younger landscape gardener. The Queen and the nation celebrate Elizabeth II's Silver Jubilee.

As Elizabeth welcomes Britain's first woman prime minister and Charles meets a young Diana Spencer, an IRA attack brings tragedy to the royal family.

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

After Charles proposes, Diana moves into Buckingham Palace and finds her life filled with princess training, loneliness — and Camilla Parker Bowles.

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

In 1946, an Egyptian street vendor finds inspiration in the abdicated King Edward. Years later, he eagerly tries to integrate into British High Society.

After heightened public scrutiny, Charles forges a new alliance in Hong Kong. Mohamed Al-Fayed offers his support to a newly-divorced Diana.

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.