Scooby Doo and the Mystery Inc. gang set out to find the truth behind Crystal Cove's spooky goings-on.

A long time ago there was a town called Gatorsburg, where alligators swam wild and free and people got rich. Now, it's a ghost town and the reptiles have all disappeared.

A mysterious Ghost Trucker is terrorising Crystal Cove. If that's not enough, all the doorknobs have begun to disappear, someone has hidden a priceless diamond, and Fred's dad, the Mayor, is up for re-election against a guy named Avocados.

The gang investigates when the Crystal Cove Beach volleyball tournament is attacked by a hideous Man Crab. They are convinced that the monster is really disgruntled local Skipper Shelton, famous for his hatred of the town's bureaucrats. When Daphne is captured by the Man Crab, the gang have to put their mystery solving into overdrive and find proof, fast.

A mythological creature named `Que Horrifico' is turning the children of Crystal Cove into monsters and scaring all the adults away! Scooby and the gang go undercover as a family - Fred as Dad, Daphne as Mum, Velma as Grandma, Shaggy as the son and Scooby as the baby.

There is a new girl at Crystal Cove High named Alice May, and she has set her romantic sights on Fred. There's only one problem - Alice is a ghost, famous for snatching up guys like Fred and disappearing with them forever. Now she wants to take Fred to the prom - which means he's next.