As Elizabeth welcomes Britain's first woman prime minister and Charles meets a young Diana Spencer, an IRA attack brings tragedy to the royal family.

After Charles proposes, Diana moves into Buckingham Palace and finds her life filled with princess training, loneliness — and Camilla Parker Bowles.

A much-needed update to the Royal Yacht draws scrutiny to the Queen's reign. Hounded by the press, Charles and Diana have a second honeymoon in Italy.

Prince Philip offers his support to a grieving family member. Keen to snatch a scoop, a tabloid journalist approaches Diana about a tell-all book.

Diana holidays in Saint-Tropez with Al-Fayed and bonds with his son Dodi. Charles is crushed when the Queen won't attend Camilla's 50th birthday party.

After a series of strokes, a declining Margaret recalls a wild night with her sister at the Ritz in 1945, and later celebrates her 70th birthday there.