It's been hundreds of years since King Arthur's reign. His descendant, Arthur, a future Lord and general gadabout, has been betrothed to Gwendoline, the quick-witted, short-tempered princess of England, since birth. The only thing they can agree on is that they despise each other. They're forced to spend the summer together at Camelot in the run up to their nuptials, and within 24 hours, Gwen has discovered Arthur kissing a boy and Arthur has gone digging for Gwen's childhood diary and found confessions about her crush on the kingdom's only lady knight, Bridget Leclair. Realizing they might make better allies than enemies, they make a reluctant pact to cover for each other, and as things heat up at the annual royal tournament, Gwen is swept off her feet by her knight and Arthur takes an interest in Gwen's royal brother.