In 1930's Austria, a young woman named Maria is failing miserably in her attempts to become a nun. When the Navy captain Georg Von Trapp writes to the convent asking for a governess that can handle his seven mischievous children, Maria is given the job. The Captain's wife is dead, and he is often away, and runs the household as strictly as he does the ships he sails on. The children are unhappy and resentful of the governesses that their father keeps hiring, and have managed to run each of them off one by one. When Maria arrives, she is initially met with the same hostility, but her kindness, understanding, and sense of fun soon draws them to her and brings some much-needed joy into all their lives -- including the Captain's. Eventually he and Maria find themselves falling in love, even though Georg is already engaged to a Baroness and Maria is still a postulant. The romance makes them both start questioning the decisions they have made...