The gang go to the TV studio to appear on their favorite game show, but everything changes when the ghost of a long dead gangster appears.

The gang heads down to the beach where Velma's aunt works to help solve the mystery of her dolphins' disappearance. They also learn of a mysterious stranger prowling around the beach.

It's Halloween and the gang gets set out for trick or treating. At their friends the Johnsons' house, they learn that there is a real ghost living there. The ghost is a sweet one or so they think. The ghost of a long dead pirate comes demanding the Johnsons move away. The real ghost asks the gang to help save his house.

The gang is camping out in the woods where they learn about the totem monster. Things take a serious turn when the legend comes to life and the totem monster wants them off his land.

Freddy is doing a new film edition to the Stinkweed series. He runs into the actor who plays Stinkweed who claims that he's being framed for some strange incidents.

The gang goes along with Scooby to his parents' house. Scooby's parents give him their heirloom, a special collar. Everything seems okay until the ghost of a long dead dogcatcher who was arrested when he tried to steal that collar off of a young Scooby comes to continue what he started years ago.

The doctor tells everybody to just play along with Shaggy's amnesia. So now Shaggy thinks he's Commander Cool. When he finally gets his memory back he doesn't remember what just happened.

Scooby and Shaggy get into a fight and give each other the silent treatment. Things take a serious turn when a burger-like creature comes to haunt them.

The gang accidentally gives Scooby the cold shoulder. Feeling they no longer need him, Scooby runs away. Realizing how cruel they were, the gang goes on a city-wide search for Scooby.

Fed up with Freddy always blaming Red Herring for each mystery, the gang orders him to try to survive with out blaming Red Herring for each crime.