When it appears that Shaggy and Scooby messed up a big case, they go out and try to restore their reputations as mystery-solving heroes.
Scooby-Doo 2: Monsters Unleashed movie trailer - starring Matthew Lillard, Seth Green, Freddie Prinze, Jr., Alicia Silverstone, Linda Cardellini, Sarah Michelle Geller. Directed by Raja Gosnell. Theatrical Release Date: 3/26/2004
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