Siblings Ethan and Hallie O'Fallon plot to get their divorced parents back together in time for Christmas.

France, 17th century, under the reign of Louis XIII. Dogtanian is an impetuous and innocent peasant from Gascony, as well as a skilled swordsman, who travels to Paris with the purpose of making his dream come true: to join the Corps of Muskehounds of the Royal Guard.