A story about of convent school. Two high-spirited young students at St. Francis Academy, a catholic boarding school for girls. The movie opens on the first day of school for a new batch of students at St. Francis Academy.
The school run by a very strong-willed Mother Superior (Rosalind Russell). She is used to having things her way, but she may have met her match in the headstrong and independent Mary Clancy (Hayley Mills) and her newfound friend, Rachel Devery (June Harding). The couple keep things hopping for the challenged Mother Superior and her staff of bewildered Sisters.