Charles and Diana, The Iron Lady take center stage in new trailer for ‘The Crown’ season 4

The royal drama returns to Netflix on November 15

As the 1970s are drawing to a close, Queen Elizabeth (Olivia Colman) and her family find themselves preoccupied with safeguarding the line of succession by securing an appropriate bride for Prince Charles (Josh O’Connor), who is still unmarried at 30.

While Charles’ romance with a young Lady Diana Spencer (Emma Corrin) provides a much-needed fairytale to unite the British people, as the transformation from teenager to Princess of Wales takes place, it is anything but a fairytale for Diana as Charles continues to carry on his affair with Camilla Parker Bowles (Emerald Fennell).

Season four takes us from 1979 to 1990, also covering the reign of Margaret Thatcher (Emmy winner Gillian Anderson), the first female Prime Minister in the history of the United Kingdom and her constant clashes with her constituents and the monarch itself.

Written by Peter Morgan, The Crown‘s fourth season also stars Helena Bonham Carter as Princess Margaret, Tobias Menzies as The Duke of Edinburgh, Erin Doherty as Princess Anne, Marion Bailey as the Queen Mother, Georgie Glen as Lady Fermoy, Tom Byrne as Prince Andrew, Angue Imrie as Prince Edward, and Charles Dance as Lord Mountbatten.