Ellen McHugh, a poor Irish immigrant to America, finds work in a carnival and is thus able to send her son Brian to a fine school. But when her position is found out, the school expels Brian. Mrs. McHugh feels compelled to allow the school principal and his wife to adopt Brian. The widow McHugh becomes a housekeeper and raises her employer's daughter Edith, who grows up to fall in love with Brian McHugh.

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.