Episode 10 - The Frightened Hound Meets Demons Underground / The Wizard of Ooze
Air Date: Nov 13, 1976
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.