

Showbiz must be treating former Get Smart agent Don Adams badly — he's been reduced to running the Adams Extermination Company. When he's sent to Horror Hill to eliminate the vermin from horror actor Lorne Chumley's mansion, the gang helps out, unaware of the dangers that lie within.
The Harlem Globetrotters and Scooby and his friends are hijacked to a haunted island for an experience they will never forget.
Scooby-Doo and the gang, along with the rock group Josie and the Pussycats, battle ghosts haunting the Dixie Queen Showboat on the Missouri River—or is it the "eerie" canal?