Charles is caught in a deadly avalanche, prompting both him and Diana to reevaluate their commitment to their troubled marriage.

Amid a growing challenge to her power, Thatcher fights for her position. Charles grows more determined to separate from Diana as their marriage unravels.

Grappling with mental health issues, Margaret seeks help and discovers an appalling secret about estranged relatives of the royal family.

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.

As Thatcher’s policies create rising unemployment, a desperate man breaks into the palace, where he finds Elizabeth’s bedroom and awakens her for a talk.

The Queen spends quality time with Prince William. On Guy Fawkes Night, fireworks make for a perfect distraction from Diana’s BBC interview.

Between a fire at Windsor Castle and tensions in her children’s marriages, the Queen commemorates and reassesses her 40 years on the throne.

Faced with the fallout of an intercepted call with Camilla and the consequent kickback to his marriage, Prince Charles must navigate a scandal.

Eager to lead a newly democratic Russia, President Yeltsin tries to win the Queen’s support while she navigates new rifts in her marriage with Philip.