In the rural splendor of Gascony, France, young Corinne (Kelly Sheridan) practices the art of musketeering in her large barn. Fencing and executing miraculous acrobatics, Corinne certainly seems like shes ready to defend the French royal family (her father was the famous musketeer, DArtagnan), and now that its her 17th birthday, her mother has agreed to let her go to Paris to follow her dreams, giving her a letter of introduction to Monsieur Treville, the captain of the Parisian musketeers. Little kitten Mirette follows, and former musketeer horse Alexander leads the way. Once in Paris, however, the confident Corinne finds that not everyone is disposed to having a woman become a musketeer. Treville is polite but tells her, no. A chance encounter with Regent Philippe (the guardian of young Prince Louis) leads his dog Brutus to chase Mirette, with Corinne in hot pursuit. Corinne manages to disrupt the scullery duties of pretty Aramina, Vevecca, and Renee in her chase for Mirette a fact that isnt forgotten when their boss, Madame de Bosse hires Corinne as another maid. The girls arent too friendly to Corinne at first, but once they learn she wants to be a musketeer as they do, its all for one and one for all. And just in time, too, since young Prince Louis life appears to be in mortal peril.