Obwohl die Leibwache von Kardinal Richelieu es in letzter Minute verhindern möchte, glückt es D’Artagnan, die Audienz Lord Buckinghams bei der Königin zu retten. Die Königin, die einen Krieg zwischen Frankreich, Spanien und England verhindern möchte, schickt Lord Buckingham mit einem Brief und einem Diamantenhalsband als Freundschaftspfand nach London. Auch D’Artagnan erhält ein Geschenk: Einen kostbaren Dolch von Lord Buckingham.
Waiting outside the Louvre Palace, Dogtanian and Pip notice a masked man lurking in the bushes. They give chase, and Dogtanian is fighting a duel with him when the Three Muskehounds appear. The stranger leaps the fence and makes off into the palace grounds. The Musketeers are unable to follow without a permit from Treville, which they set off to get. Pip is sent into the palace to warn Juliette, but the masked man is already hiding in the room where Buckingham and the Queen are having their clandestine meeting. Buckingham reveals he is in love with the Queen, who tells him she will always be faithful to her husband. He begs for a token to remember her by. Pip and Juliette burst in and expose the spy, who makes off. Buckingham has to leave France immediately to prevent discovery. The Queen sends Juliette with a letter for Buckingham and a gift of diamond studs given to her by the King. She is stopped by Widimer and Rochefort takes the package, but succeeds only in stealing a dummy le
En dépit d’une frayeur de dernière minute causée par l’un des gardes personnels du duc de Buckingham, D’Artagnan rend possible la rencontre du duc et de la reine. Soucieuse d’éviter une guerre entre la France, l’Espagne et l’Angleterre, celle-ci renvoie le duc de Buckingham à Londres avec une lettre et son collier.
Apesar de um mal-entendido com um dos guardas do duque de Buckingham, Dartacão acredita que este terá uma audiência com a rainha. A rainha pretende evitar a guerra entre a França e a Inglaterra, e para o provar envia o duque a Londres com uma carta e o seu colar. Dartacão e os Três Moscãoteiros conseguem pôr a salvo o barco do duque, que agradece entregando um punhal a Dartacão.
