Amid a growing challenge to her power, Thatcher fights for her position. Charles grows more determined to separate from Diana as their marriage unravels.
Margaret Thatcher visits Balmoral but has trouble fitting in with the royal family, while Charles finds himself torn between his heart and family duty.
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.
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?
Victoria realises that she is pregnant again, and her equilibrium is threatened by Albert’s burgeoning friendship with female mathematician Ada Lovelace.
Jenny is seconded to a short-staffed hospital in London, but grows increasingly reluctant to carry out her duties when she finds out she is working under intimidating surgeon Mr Tracey….