When Scooby inherits his family's hideous but valuable collar heirloom, the ghost of a sadistic dogcatcher his parents defeated years ago returns to steal it.
Shaggy develops amnesia during a case involving an alien, making him think he is his favorite comic book superhero, Commander Cool.
When a giant chicken monster starts haunting the "National Exaggerator", Freddy's favorite newspaper which is now owned by his uncle, the gang takes the case.
Villain(s): The Boogey BikerIdentity(ies): Red HerringReason(s): To keep the gang from finding out about him fixing his aunt's motorcycle and adding a sidecar to it as a present for her birthday.
Villain(s): The Astronaut GhostIdentity(ies): Simon Simonson, scientistReason(s): To exact revenge on Velma for ruining his experiment's chances of going into space.
In trouble at a restaurant and forced to pay for their meals by washing dishes, Shaggy and Scooby imagine themselves as Commander Cool and Mellow Mutt, with a snooty waiter as their latest enemy.