King Louis XIII of France is thrilled to have born to him a son - an heir to the throne. But when the queen delivers a twin, Cardinal Richelieu sees the second son as a potential for revolution, and has him sent off to Spain to be raised in secret to ensure a peaceful future for France. Alas, keeping the secret means sending Constance, lover of D'Artagnan, off to a convent. D'Artagnan hears of this and rallies the Musketeers in a bid to rescue her. Unfortunately, Richelieu out-smarts the Musketeers and banishes them forever.
Douglas Fairbanks
Belle Bennett
Marguerite De La Motte
Dorothy Revier
Vera Lewis
Rolfe Sedan
William Bakewell
Nigel De Brulier
Lon Poff
Charles Stevens
Henry Otto
Léon Bary
Tiny Sandford
Gino Corrado
Ullrich Haupt