Mystery Inc. is summoned to investigate occurrences in a haunted villa, where a black knight terrorizes anybody who tries to get close to treasure hidden by the former owner of the building.

Cast:Frank Welker, Matthew Lillard, Grey DeLisle, Kate Micucci, Colleen O'Shaughnessey, Jason Spisak,

Genre:Animation, Comedy, Family, Mystery,

country:United States of America,

Production:Warner Bros. Animation,