Following King George's death, Prince Edward must choose between the throne and marrying American divorcee, Wallis Simpson.
When the shy, stuttering George VI is crowned King in 1937, he must rebuild the prestige of the monarchy after the shocking abdication of his brother Edward and in the shadow of WWII.
As the young Elizabeth II takes her first steps as Queen, she is torn between old tradition and those, like her husband, who want to modernize the monarchy.
Prince Charles is next in line to succeed his mother, Queen Elizabeth, and is under great pressure to marry and produce an heir for the Windsor dynasty.
The marriage between the Prince and Princess of Wales starts to fall apart, and the queen begins to face the greatest challenges of her long reign.
The six-part series concludes with a look at the lives of Prince William, Prince Harry and the future of the crown.
