The Real Ghostbusters - The Grundel

Seizoen: 3 - Aflevering: 10 / 89 - Eerst uitgezonden: 14 november 1987 - Episode ID: 323529

A young boy asks the Ghostbusters about a strange creature he has seen talking to his brother. Egon soon realizes that the boy described a Grundel, a creature who appears to young kids and turns them bad, until they become Grundels themselves.