Mr. Pelletan's rascal son Bébert son received one other F for taking part in in school. His punishment is an essay on the Merovingian king Dagobert. All they know is he had eight wives and reunited Francia. The ignorant knave's irreverent creativeness turns that right into a harem and a ridiculous conflict with out armies, loaded with anachronisms, in a race in opposition to rival king Charibert for the crown of Reims. The king's proper hand, archbishop Eloi, the later patrons saint of carpentry, is portrayed as an inventor.