Feature-length animated adventure following Scooby-Doo (voice of Frank Welker) and the gang as they investigate another mystery. Shaggy (Matthew Lillard) and Scooby win tickets for WrestleMania XXX and, along with Fred (Welker), Velma (Mindy Cohn) and Daphne (Grey DeLisle), head to WWE City for the event. While there, however, they encounter a mysterious monster whose presence is sure to ruin the show. Assisted by wrestlers such as John Cena, Triple H, The Miz and Kane, the gang work together to solve the case.