A Lord's son aids a seaman's mission but returns to save his sick father's shipyard from strikers.

Billy Morrow (Ben Lyon), who comes from a wealthy family, is sailing to Europe with his father (Holbrook Blinn) on their yacht. Along for the ride is Mrs. Parr (Claire Eames) and her stepdaughter. Near the French coast, Billy discovers that Mrs. Parr wants to arrange a marriage between him and the girl, so he escapes and takes a lifeboat ashore.

The Swan (1925) is a silent film produced by Famous Players-Lasky and distributed by Paramount Pictures. The film is based on Melville Baker's 1923 Broadway play adaptation, The Swan, of Ferenc Molnar's play A Hattyu Vigjatek Harom Felvonasbarn. This film was directed by Dimitri Buchowetzki, a recent Russian immigrant working for Famous Players-Lasky. Buchowetzki had directed pictures in Russia, Sweden, and Germany. The story of this film was remade in 1930 as One Romantic Night, an early talkie for Lillian Gish, and in Technicolor as a 1956 vehicle for Grace Kelly.

In the year 1550, Sir George Vernon agrees to have his young daughter Dorothy betrothed to John Manners, the son of the Earl of Rutland. Sir George signs a contract, promising that the marriage will take place on Dorothy's 18th birthday, or else he will have to pay a large penalty to Rutland. But when the two children have grown older, rumors of John's wild behavior in France provoke Sir George to call off the engagement, and to pledge his daughter instead to her cousin Malcolm. Rutland now claims the forfeit from Sir George, and meanwhile, John has befriended Mary Stuart, the sworn enemy of Elizabeth, who is now Queen of England.