In 1920, Elizabeth Bowes-Lytton accepted a dance from the Duke of York (aka "Bertie"). Soon, they fell in love, married and had children. But when Bertie's brother, Edward VIII, abdicated, Bertie improbably ascended to the throne of England -- something he'd never planned on doing -- as George VI. This is the story of the couple's life together as king and queen of England, ruling thoughtfully through eras of peace and world war.