The Gang goes to the Coolsville amusement park Shaggy and Scooby are excited because they will be the first ones to ride Monster Mountain a giant roller coaster for earing the most ralfal tickets but the fun park is turning into a nightmare park because of a terrifying ghost but not just any ghost a clown ghost.

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.

Freddy and the gang are visiting the company that prints a magazine that Freddy enjoys reading. Suddenly it takes a serious turn when one of the magazines so called fictional characters comes to life.

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.

Daphne is excited about going to hear her favorite rock singer Buddy. That is until the ghost of a long dead rock singer comes and kidnaps Buddy.

Velma wins first prize at her elementary school science fair with a computerized robot that Velma has programmed to do exactly what it's told. When mysterious locker robberies occur, Velma is the prime suspect. Things get even worse when her robot goes on a deadly rampage.

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.

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.