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A Frightened Hound Meets Demons Underground is the tenth episode of The Scooby-Doo/Dynomutt Hour, later repackaged as the tenth episode of the first season of The Scooby-Doo Show.


The gang investigate the weird happenings of some ancient demons. They learn that the demons are after a talisman that will drive them back into the iron lid of an underground city where they belong.


One night at a large construction site, a crane is lifting an iron beam while a man assists down on the risers. All of a sudden, a large puff of pink smoke appears and a giant, red winged demon appears! The man jumps onto the moving beam and as the demon swipes at him, it leaves a handprint-that has burned right through the metal! Fred, Daphne, Velma, Shaggy and Scooby are eating dinner and reading an article about a demon sighting on a large construction site; it has been the fifth sighting so far. The gang decides to pay the site a visit to try and solve the mystery. They talk with the owner, Mr. Crenshaw, whose office has just been vandalized by the demons. He claims they were after an ancient talisman that is used to be able to drive demons back underground. Daphne finds a matchbook with the words "Crow's Nest" on it. Sam Crenshaw explains that the Crow's Nest is a waterfront hotel.

The gang go to the Crow's Nest hotel and speak with the manager, Sally. She claims that the demons are terrorizing her as well. A sailor named Albert Tross appears, and tells the gang that the demons prowl the docks at night, and that is where the gang head next. On the docks, they split up. Shaggy and Scooby end up chased by the demons and meet up with the gang, telling their story. Sally shows up and frantically tells Mystery Inc. that the demons have taken Albert. The gang go down to Sally's basement, which contains the entrance to the underground city. They enter the city, and look around, but get separated. Scooby and Shaggy have a run-in with the demons again, and Fred, Daphne and Velma find a steel lid leading underground, where supposedly the demons escaped from, but it is sealed tight.

Shaggy and Scooby meet up with Fred and the girls, and the five sleuths come upon a wax museum, full of wax statues of classic movie monsters (a werewolf, Frankenstein's monster, etc.) and they discover a demon exhibit-and one of the demon statues are missing. Daphne gets nabbed by a demon, and the gang split up to look for her. Shaggy and Scooby enter an old music store, where they find Daphne stuffed inside a piano. Velma and Fred find an old drugstore and Velma discovers one of the bottles have been recently tampered with. The bottle breaks and releases a pink gas, the same pink gas that appears when the demons show up. Shaggy, Scooby and Daphne meet up with Fred and Velma.

Suddenly, the demon appears and chases the gang. They drive back to the construction site to find Mr. Crenshaw's office destroyed and Mr. Crenshaw missing. Then they return to the underground city, still being chased by the demons, but manage to lose them and stumble upon a cable car roundhouse. The demons appear again and Shag and Scoob hop onto a cable car and the demon chases them around the cable car. After a period of time, the cable car crashes and Scooby and Shaggy flee and hide in an old movie set, where they fall through a trapdoor, crashing into Velma, Daphne and Fred and they slam through an old wall, back into the wax museum-where all of the demon statues are missing. The gang comes up with a plan.

They set up some of the monster figurines on the cable car rails and operate them along the rails, chasing the demon into an underground secret tunnel. They follow the tunnel and end up in Sally's basement where Albert Tross appears. Scooby also discovers a chest full of coins -- Albert Tross is the culprit! The gang chase him, and finally trap him. They pull a rubber mask off to reveal Sam Crenshaw underneath. His get-up was Albert Tross; he used him to be able to get into the underground city in Sally's basement. But when the gang found the matchbook and connected him to the Crow's Nest, he had to make Tross disappear, too. The sizzling handprints and the red smoke was made using the medicine in the pharmacy, and he was stealing treasure from the underground city. Also, he stole demon statues from the wax museum and hooked them up to the cable cars to make it look like demons were running amok.


Main characters:

Supporting characters:

  • Sally (single appearance)


  • Demon (single appearance)(no lines)(Sam Crenshaw's disguise)
  • Sam Crenshaw (single appearance)
  • Albert Tross (single appearance)(Sam Crenshaw's disguise)

Other characters:

  • Joe (single appearance)
  • Joe's co-worker (single appearance)
  • Lobster (single appearance)(no lines)
  • Waiter (single appearance)(no lines)
  • Man with talisman (single appearance)(no lines)(flashback only)
  • Rat (single appearance)(no lines)





Suspect Motive/reason
Sam Crenshaw He knew all about the legend of the demons.
Sally Looked in a sinister manner when the gang left Crow's Nest.
Albert Tross Also looked in a sinister manner when the gang left Crow's Nest.


Culprit Motive/reason
Sam Crenshaw as Albert Tross and the Demon To steal things that he found in the underground city.


Don Messick Scooby-Doo
Joe's co-worker
Casey Kasem Shaggy Rogers
Frank Welker Fred Jones
Heather North Daphne Blake
Pat Stevens Velma Dinkley
John Stephenson Sam Crenshaw
Albert Tross
Virginia Gregg Sally

Full credits

The following credits reflect closely as possible to how they are seen on-screen.


Cultural references

  • Templeton's model from Charlotte's Web appears in this episode as a rat that scares Scooby.

Animation mistakes and/or technical glitches

  • In the old ice cream parlor, Scooby-Doo knocks down 10 cups, which somehow turn into 16, then turn into 12.

Inconsistencies/continuity errors and/or goofs/oddities

  • When the gang first enters the museum, the base on which the demons sit is grey and looks like a habitant. However, when the gang goes to the museum later to find that all the demons are gone, the base is different.
  • It was shown at the end of the episode that the demon army was actually wax statues with wheels placed on the cable car tracks, but when the gang first encounters them, they floated. If they were statues on tracks, the gang would've noticed them.
  • It is not explained how wax statues moved on cable car tracks.
  • It is unconfirmed whether or not the tailsman that Sam Crenshaw had was real.

In other languages

Language Name Meaning
French La Cité souterraine The Underground City

Home media


External links

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