At the last minute Richard Sturges (Clifton Webb) buys a steerage-class ticket for the maiden voyage of the RMS Titanic from a Basque immigrant. Once aboard he seeks out his runaway wife, Julia (Barbara Stanwyck). He discovers she is trying to take their two unsuspecting children, 18-year-old Annette (Audrey Dalton) and ten-year-old Norman (Harper Carter), to her hometown of Mackinac, Michigan, to raise as down-to-earth Americans rather than rootless elitists like Richard himself.