Betrothed against her will to King George, young Charlotte arrives in London on her wedding day and faces scrutiny from the monarch's cunning mother.

Frustrated by her first days of marriage to the mysterious and mercurial king, a lonely Charlotte finds a confidante and adviser in Lady Agatha Danbury.

Charlotte demands a declaration from George ahead of the future king's arrival. Lady Danbury and Princess Augusta cross swords over the Great Experiment.