• 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.