Jeannie's young nephew Daniel is troubled by events at his boarding school following the death of a teacher,Mr. Dawkins. Jeff and Jeannie investigate by securing work at the school, respectively as teacher and nurse. The military style headmaster Captain Graves turns out to have a hand in the skulduggery and Jeannie and Jeff are helped by the pupils, as well as Marty, in overcoming him.
—don @ minifie-1