エリザベス王女とフィリップ王子の結婚の儀が執り行われる。同じ頃、国王ジョージ6世の体調は悪化し、チャーチルが2度目の首相就任を果たす。

体調がすぐれない国王に代わり、4大陸にわたる外遊へ出かけるエリザベスとフィリップ。一方、議会では党員らがチャーチル追放を目論んでいた。

エリザベスの王位継承がもたらす生活の変化を実感するフィリップ。チャーチル首相は戴冠式の延期を求め、王位を放棄したジョージ6世の兄が帰国する。

濃霧のせいでロンドンの都市機能が何日も麻痺し、健康被害が広がる。にもかかわらず何の対策も講じないチャーチル首相に、議会の不満は高まる。

慣例に背き、夫を戴冠式委員長に任命したエリザベスだが、フィリップの大胆な計画に波紋が広がる。同じ頃、女王の伯父・ウィンザー公が渡英する。

マーガレットとピーターから話があると切り出されたエリザベス。王室のスキャンダルが新聞社にすっぱ抜かれると知った王太后は、心中穏やかでない。

ソ連の水爆実験と時を同じくして、英国首相、外相ともに深刻な健康問題に悩まされる。自分の教養の偏りを不安に感じたエリザベスは、家庭教師を雇う。

エリザベスは、夫と外遊へ出かけ過密スケジュールをこなす。その間、代理として公務を遂行したマーガレットは、姉とは違う個性を出そうとするが…。

フィリップとギクシャクしているエリザベスは、旧友と過ごす時間に安らぎを覚える。チャーチル80才の誕生日を記念して、肖像画が描かれることに。

再会したマーガレットとピーターの行く手には、新たな障害が立ちはだかっていた。エリザベスは、女王としての立場と、姉としての想いの間で揺れ動く。

5ヵ月間の外遊に出発するフィリップを前に、ある事実を知り心乱れるエリザベス。イーデン首相は、スエズ運河を掌握したエジプトへの反撃を推進する。

フィリップとの距離を感じるエリザベス。国際社会の圧力と自身の健康問題に悩むイーデン。フィリップは、取材中に幼少時代の辛い記憶を思い出す。

イーデンは、閣僚や世論からの厳しい批判に直面する。その頃、宮殿は、フィリップの評判を落としかねないスキャンダルを阻止しようと画策していた。

エリザベスとフィリップの結婚10周年を祝うパーティーが開催される。マクミラン首相とマーガレット王女は、それぞれの結婚と恋愛に問題を抱えていた。

自動車工場見学の際、一般国民への配慮に欠けた時代錯誤なスピーチをしたとして、エリザベスと君主制は、1人の貴族から痛烈な批判を受ける。

第二次世界大戦時の極秘文書が明るみに出たことで、親族の暗い過去を知るエリザベス。ウィンザー公は、あの手この手で公務復帰を図るが…。

ピーター・タウンゼントから手紙を受け取ったマーガレットは、大胆な行動に出るが、エリザベスにとっての朗報が、マーガレットの計画を狂わせる。

ジャッキー・ケネディ大統領夫人に触発されたエリザベスは、周りの反対を押し切って、ガーナとの問題に対して思い切った型破りな解決策を講じる。

息子のチャールズを、母校であるスコットランドの一般校に通わせたいフィリップは、自身が在学中に経験した衝撃的な出来事と辛い体験に思いをはせる。

売春婦絡みの国家機密漏えい事件が、エリザベスとフィリップの仲に不穏な影を落とす中、懐妊したエリザベスは、静養のためスコットランドへ向かう。

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.

While the Queen travels abroad to learn about horse training, unhappiness among the British elite with the devaluation of the pound involves Lord Mountbatten in a plan to oust Harold Wilson.

Prince Charles is sent to Aberystwyth to learn Welsh from an ardent nationalist in preparation for the ceremony for his investiture as Prince of Wales.

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.

Charles visits the exiled Duke of Windsor in his Paris chateau, only to find him very ill. But will the Queen make peace with her uncle before he dies?

While Princess Anne dates her elder brother's polo rival Andrew Parker Bowles, Prince Charles falls deeply in love with Camilla Shand causing the Queen Mother and Lord Mountbatten to interfere.

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.

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.

On a tour of Australia, Diana struggles to balance motherhood with her royal duties while both she and Charles cope with their marriage difficulties.

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

As many nations condemn apartheid in South Africa, tension mounts between Thatcher and Elizabeth over their clashing opinions on applying sanctions.

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.

A much-needed update to the Royal Yacht draws scrutiny to the Queen's reign. Hounded by the press, Charles and Diana have a second honeymoon in Italy.

Prince Philip offers his support to a grieving family member. Keen to snatch a scoop, a tabloid journalist approaches Diana about a tell-all book.

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

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.

As BBC's Martin Bashir goes to great lengths to secure an interview with Diana, the lonely princess finds purpose and warmth in a London hospital.

The Queen spends quality time with Prince William. On Guy Fawkes Night, fireworks make for a perfect distraction from Diana's BBC interview.

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.

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

Diana holidays in Saint-Tropez with Al-Fayed and bonds with his son Dodi. Charles is crushed when the Queen won't attend Camilla's 50th birthday party.

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?

Hounded by press and adoring girls, 15-year-old William struggles to find stability after Diana's death. Charles enlists his own parents to help his son.

Eager to improve the monarchy's public image, the Queen seeks out savvy statesman Tony Blair — but the Prime Minister's advice defies royal protocol.

Now at university, William sets his eyes on Kate Middleton. With meddling parents and other prospects in the mix, how will their connection bloom?

After a series of strokes, a declining Margaret recalls a wild night with her sister at the Ritz in 1945, and later celebrates her 70th birthday there.

Reeling from loss and wary of her Golden Jubilee, the Queen bonds with William, who finds his footing between normality and life in the royal limelight.

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.