The Scooby-Doo/Dynomutt Hour

The Frightened Hound Meets Demons Underground / The Wizard of Ooze (1x10)

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A Frightened Hound Meets Demons Underground (Scooby-Doo): Seattle, Washington is ravaged by evil demons. The Wizard of Ooze (Dynomutt): The super pair meets Swamp Rat and Mudmouth, two evil swamp monsters determined to turn Big City into a swamp.