In the spring of 1945, World War II is coming to a close. Roger Halyard, a dignified, strait-laced Englishmen, lives on a South Sea atoll with his three daughters, Gloria, Hester and Violet, along with the housekeeper, Thelma, who has raised the girls since childhood.
While Ludovic Dubois, a young summer camp monitor in Saint-Benoît, entertains the children by playing Robin Hood, the lord's niece is kidnapped by her uncle, in the castle next door.
After being framed for a murder he didn't commit, Tom Penney (Donald Houston) serves his time and returns to his rural English home to establish a quiet life.