A Pup Named Scooby-Doo - The Sludge Monster from the Earth's Core

Seizoen: 1 - Aflevering: 2 / 2 - Eerst uitgezonden: 17 september 1988 - Episode ID: 5022

The Coolsville bank is robbed. The janitor says that he saw a monster in the vault but nobody believes him and he is accused of the robbery. He's proven right when Scooby finds the monster inside his doghouse.