A young Princess Elizabeth marries Prince Philip. As King George VI’s health worsens, Winston Churchill is elected prime minister for the second time.

With Elizabeth in a new role, Philip tries to assert some power. Churchill wants to delay the coronation. King George’s disgraced brother arrives.

Elizabeth rejects protocol by appointing Philip to coordinate her coronation, but his ideas create conflict. The Duke of Windsor returns to London.

Palace insiders try to prevent a scandal that could reflect poorly on Philip. Eden faces censure from his cabinet and the press.

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.

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.