In episode #14 of Mystery, Incorporated (yes, I love this Scooby Doo show) the gang are headed to the Mystery Solvers Club State finals. Scooby is sick, and they are going without him, since he is just the sidekick. Shaggy can't believe there are more clubs like theirs out there. Turns out there are at least three others in Crystal Cove for the finals. I didn't see Goober and the Ghost Chasers or Butch Cassidy and the Sundance Kids, but it was a pretty packed cast already. Many shenanigans happen between the "sidekicks" of The Funky Phantom (and his cat, Boo), Captain Caveman, Jabberjaw, Speed Buggy and the villain Infernicus before everything is solved.