- When the gang returns, they find the entire town of Crystal Cove enslaved by Professor Pericles and excavating beneath the city for the cursed treasure.
- First Aired: April 4, 2013 - 22 Minutes Runtime
- Frank Welker, Mindy Cohn, Grey DeLisle, Matthew Lillard, Casey Kasem
Watch Scooby Doo Mystery, Inc. Season 2 Episode 22 - Gates of Gloom
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Also starring Casey Kasem
Also starring Mindy Cohn
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Scooby Doo Mystery, Inc., Season 2 Episode 22, is available to watch and stream on Cartoon Network. You can also buy, rent Scooby Doo Mystery, Inc. on demand at Amazon Prime, Netflix, Amazon, Vudu, Google Play online.