The gang, at the college museum, gets the lead on a dead Egyptian ruler named Inca. According to an ancient superstition, if he were ever removed from his crypt, he would turn the people who moved him to stone. Shaggy finds a rare coin that the Professor is trying to study. The trouble begins when Shaggy accidentally takes the coin and the mummy is loose looking for it.
While driving back from the movies, the gang finds a strange man in the back of the Mystery Machine. They recognize it as the ghost of Mr. Hyde who is a jewel thief. They follow him to a house where they meet a descendent of Dr. Jekyll who claims to be the ghost of Hyde, but is he telling the truth?
While in China, the gang pursues an ancient Chinese mask at an antique show. Soon strange things start happening. The gang is pursued by some horrible ghosts. They learn that the ghost of long dead emperor has returned to claim what is rightfully his. Things take a serious turn when Daphne is taken hostage.
The gang is having fun at a TV station with their friend Johnny but then a wax creature shows up. Johnny tells them that years ago a wax maker named Grisby used to work for the station. He was fired and threatened to bring one of his wax creations to life to seek revenge on the people who fired him.
On Halloween night, the New England town of Salem, Massachusetts is being haunted by the ghost of the witch Milissa Wilcox, who was burned at the stake in 1778. After receiving a distressed call from their friend Arlene Wilcox, a descendant of the accused witch, the gang arrives to help, despite being warned off by the town's mayor. The gang realizes the witch looks exactly like Arlene.
The gang go to the ancient city of Byzantius in Turkey. On the way there, they meet the Tar Monster, who frightens the workers away while opening the inner sanctum.
The gang travel to Scotland to visit their friend Aggie MacDuff, who says people have left her castle in fear after ghost sightings. It seems the ghost plays bagpipes to call on the Loch Ness Monster to help him scare people away from the castle.
As the gang go water-skiing, they encounter Old Iron Face, a phantom who is supposed to have a hideous face. Later the gang's guide, Captain Morgan, disappears, and they set out for the island to find him.
After an emergency landing in a jungle in Brazil, the gang get caught between headhunter natives, and the Jaguaro: a creature with the head of a Smilodon, and the body of an ape.
As the gang goes to New York City to visit Daphne's aunt, they learn from her that a strange and unexpected package containing a cat medallion arrived at her door. She believes that every night, she turns into the cat creature — the same cat creature that robbed a jewelry store in town.
The gang discovers a humanoid mantis creature roaming around the Vulture's Claw Botanical Gardens.
The kids discover the Diabolical Disc Demon or the Phantom. He wants the half-finished song of a missing songwriter and will stop at nothing to get it.
The gang runs into the Moon Monster. There are rumors that if you run into his shadow, you will be turned into stone.
The gang goes to visit their friend Antonio in Venice. They soon find out that a ghost is haunting him and the ghost plans to steal the ancient necklace Antonio is wearing.
The gang arrives at Puerto Rico to visit the ancient fortress El Morro. While there, the kids run into a ghostly general who warns them to stay away from his creepy fortress.
The gang meets Jimmy Pelton, a star tennis player, while cruising England. Jimmy has been cursed by the Warlock Anthos that if he plays in Wimbledon, he is doomed.
The gang goes to Canada at the newly deserted village of Bottomless Lake. It turns out that a beast has scared everyone away.
What do people remember most about Scooby and the gang?
A collection of clips synced with the music video written by Scott Innes, Claude Parish, and Nelson Blanchard. Performed by Scott Innes and Nelson Blanchard.
Features interviews with Gordon Hunt, Tony Benedict, Mark Young, Jerry Eisenberg, Maggie Roberts, Iwao Takamoto, Andrea Romano, Joe Barbera, Bill Hanna, Willie Ito, Bob Singer, James Walker, Paul Sabella, Barbara Kruger, Iraj Paran, Hoyt Curtin, Kelly Ward, and Ed Collins. The documentary covers Scooby-Doo and other outputs of the iconic animation studio.