Cada episodio presentaba a alguna celebridad invitada, quien ayudaría a los jóvenes a resolver el misterio de la semana. Algunas celebridades aportaron con su propia voz (Don Knotts, Jonathan Winters, Sandy Duncan, Tim Conway y Sonny and Cher entre otros); las voces de algunos fueron posibles solo con la ayuda de imitadores (Los tres chiflados y El gordo y el flaco), y el resto eran personajes de Hanna-Barbera (los personajes de The Harlem Globetrotters (1970), Josie y sus Gatimelódicas (1970), Jeannie (1973) y Speed Buggy (1973); The Addams Family y Batman y Robin aparecieron un año antes de que sus propias series fueran creadas por Hanna-Barbera -- The Addams Family y Los súper amigos, 1973)
Las nuevas películas de Scooby-Doo (Temporada 2)
The Mystery of Haunted Island 7.0
Fecha de emisión: 1973-09-08
Duración: 40 min
Sinopsis: The Harlem Globetrotters and Scooby and his friends are hijacked to a haunted island for an experience they will never forget.
The Haunted Showboat 9.0
Fecha de emisión: 1973-09-15
Duración: 40 min
Sinopsis: 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?
Mystery in Persia 8.5
Fecha de emisión: 1973-09-22
Duración: 40 min
Sinopsis: When the gang runs into Jeannie and Babu, they end up making a detour to Persia to stop an evil djinn.
The Spirited Spooked Sport Show 9.0
Fecha de emisión: 1973-09-29
Duración: 40 min
Sinopsis: While visiting Velma's former school, the gang runs into Tim Conway, who's coaching there. Now it's up to them to unmask the ghost of a former athlete who's running amok...
The Exterminator 8.5
Fecha de emisión: 1973-10-06
Duración: 40 min
Sinopsis: 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 Weird Winds of Winona 8.5
Fecha de emisión: 1973-10-13
Duración: 40 min
Sinopsis: The Mystery Machine breaks down and the gang find themselves running into Speed Buggy and his friends. It's up to the two gangs to discovery the mystery of the winds that blow through the town that they've been stranded in.
The Haunted Candy Factory 8.5
Fecha de emisión: 1973-10-20
Duración: 40 min
Sinopsis: Answering the cries of The Mamas and the Papas singer Cass Elliot, the gang find themselves trying to unmask the green globs who are running amok in her candy factory.
The Haunted Carnival 8.5
Fecha de emisión: 1973-10-27
Duración: 40 min
Sinopsis: The gang takes a trip to the carnival to escape their ghost-chasing troubles, only to find Dick Van Dyke owns and operates the park.. .which is haunted.

Temporadas

Episodios 16

Episodios 8