The King's Speech tells the story of the man who became King George VI, the father of Queen Elizabeth II. After his brother abdicates, George ('Bertie') reluctantly assumes the throne. Plagued by a dreaded stutter and considered unfit to be king, Bertie engages the help of an unorthodox speech therapist named Lionel Logue. Through a set of unexpected techniques, and as a result of an unlikely friendship, Bertie is able to find his voice and boldly lead the country into war.

A fading actor best known for his portrayal of a popular superhero attempts to mount a comeback by appearing in a Broadway play. As opening night approaches, his attempts to become more altruistic, rebuild his career, and reconnect with friends and family prove more difficult than expected.