Synopsis: This season, covering events from 1977 to 1990, Mrs Thatcher and Diana officially appeared.When the 1970s came to an end, Queen Elizabeth's family took pains to find a decent bride for Prince Charles, who was still unmarried at the age of 30, to ensure a successor to the throne; Britain is in turmoil because Margaret Thatcher, the first female prime minister, advocated controversial policies. As Margaret Thatcher led Britain to the Falkland War, which led to disputes between the Commonwealth, her relationship with the Queen of England was like fire and water. At this time, the fairy tale love between Prince Charles and Lady Diana Spencer, who was in her prime, just brought a little comfort to the British people and made them unite. However, within the court, the whole royal family is increasingly broken.