The Mega Mondo Pop Cartoon-a-Con in sunny California marks the spot for mystery in this all-new original Scooby-Doo adventure! Shaggy and Scooby-Doo stop gruesome villain Mr. Hyde.

The gang meet the faded Blue Falcon lead actor at a comic book convention, as he swears revenge for being left out of Hollywood. Later, an antagonist from the actual Blue Falcon animated series, Mr. Hyde, begins terrorizing the convention, trying to stop the release of the new Falcon film.—Alex Daniel