Scooby-Doo and the Ghoul School

Scooby-Doo And The Ghoul School is a 1988 TV-movie produced for syndication as part of the Hanna-Barbera Superstars 10 series.

Based upon the popular 1979 Hanna-Barbera series Scooby-Doo and Scrappy-Doo. Scooby-Doo, Shaggy Rogers and Scrappy-Doo become gym teachers at a school for daughters of famous monsters.

Plot Summary
Revolta, the self-styled Witch of the Web, plans to kidnap the girls and make them her slaves in order to control their parents, who had previously warned Shaggy and Scooby not to let any harm come to their girls.