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.

Hounded by press and adoring girls, 15-year-old William struggles to find stability after Diana's death. Charles enlists his own parents to help his son.

Now at university, William sets his eyes on Kate Middleton. With meddling parents and other prospects in the mix, how will their connection bloom?