This made for TV prequel to the fun, all-star Warner Brothers movies suffers from dodgy casting decisions (a non-blond Fred, a Japanese Velma, a rather chunky Daphne, a curly haired Shaggy), very iffy CGI, and a mystery that is far too easy to figure out. It's lightweight, silly, spooky fun, and passable entertainment for the kids, I suppose, but it's not a patch on the gang's two previous live-action outings.
The simple story sees a young Shaggy (Nick Palatas), Scooby (voiced by Frank Welker), Fred (Robbie Amell), Daphne (Kate Melton) and Velma (Hayley Kiyoko) teaming up to find out who is behind the resurrection of a pair of ghosts who are haunting their high-school. In traditional Scooby Doo style, there are several suspects, but the real culprit should be glaringly obvious to anyone who has been paying attention.
Admittedly, there's some fun to be had from seeing how Mystery Inc. formed, and I enjoyed the scene in which Velma gets a sexy makeover by Daphne (gotta love a hot Asian nerd!), but all in all, this adventure lacks the magic, spectacle and quality that a better cast and a bigger budget allows.