Beautiful high society type Doris Worthington is entertaining guests on her yacht in the Pacific when it hits a reef and sinks. She makes her way to an island with the help of singing sailor Stephen Jones. Her friend Edith, Uncle Hubert, and Princes Michael and Alexander make it to the same island but all prove to be useless in the art of survival. The sailor is the only one with the practical knowhow to survive but Doris and the others snub his leadership offer. That is until he starts a clam bake and wafts the fumes in their starving faces. The group gradually gives into his leadership, the only question now is if Doris will give into his charms.

Marianne Jannetier, a well-to-do Parisian, engaged to Andre Benoit, a high-ranking government official, flees the city when the goose-stepping Nazi storm-troopers arrive. When her mother dies on the road to Bordeaux as a result of Nazi bombing, she returns to Paris and joins the underground movement. Nicholas Jordan, an American member of the RAF, stranded in Paris after the evacuation is also working with the Paris underground. Marianne kills her former fiancée, a pro-Nazi informant, for the traitorous state papers he is carrying, and she and Jordan try to flee over a French seaport...