Season 4

Scooby decides to go visit his family, though he soon discovers that they are all concerned with a curse that was supposedly placed on their family. The Scooby-Doo Detective Agency decides to investigate the curse in order to prove to the family that they have nothing to be concerned with, though they soon discover that there actually does seem to be a beast in their midst.

A dog-catcher named Buster McMuttMawler tries many attempts to capture Scooby-Doo.

Shaggy and Scooby are haunted by the ghost of Mrs. Shusham, the librarian of the old Coolsville library who wants an extremely overdue library book back.

Commander Cool and Metal Mutt try to stop an evil caterer from taking over the world through his outrageous dishes.

The Scooby-Doo Detective Agency helps out a Monster Catching agency in danger of going out of business when a giant snail is terrorizing everyone.