1x16 - The Scooby-Doo/Dynomutt Hour

The Spirits of '76 (Scooby-Doo): The gang gets locked up in a museum with the Spirits of '76. The Prophet Profits (Dynomutt): The prophet is predicting major disasters in Big City. Dynomutt and Blue Falcon are getting a bad reputation because they are unable to prevent the disasters.