Eddie goes to work for Jean, the wife of Major Hansford, a tough prep school headmaster (and retired Army officer) whose small school is being threatened by a series of nasty pranks.

Suffering from over-work, Keith Amery takes off onto the moors with a tent to get away from it all. While there, he has a strange experience, bangs his head and loses part of his memory. Eddie's mission is to find out what has happened. Meanwhile, the mysterious Australian Denise tricks her way into Eddie's confidence.