The gang heads to a Renaissance Faire where they must stop an evil court jester from ending the king's reign permanently.
Eight different monsters appear when the gang is on a three-day train trip.
Velma runs for mayor to bait the ghost that has returned to a town and scare the mayoral candidates.
The gang tours an old Hollywood Studio, but they soon uncover a mystery concerning the ghost of a silent film comedy star who has returned to make sure his recently discovered final film is never seen.
Fred gets to live out his childhood dream of being a stage magician when a mutant rabbit monster terrorizes a magic club.
The gang gets trapped in an ancient Greek palace, where they must find a scroll to escape.
The gang gets caught up in international espionage when they cross paths with British secret agent, Jenny Vex, and must help her complete her dangerous mission.
Fred's worst nightmare comes true when an evil spirit possesses the Mystery Machine and turns his beloved van into an unrelenting monster.
Daphne brings the gang to a fancy ice hotel where a new exhibit of ice age artifacts is opening; things heat up when a frozen Ice Man goes on a rampage inside the hotel.
The gang heads to Shaggy's beloved grandmother's Florida retirement home, where they learn a crazed ape man has been frightening the elderly residents.
Scooby Doo runs into an old kennel mate from the rescue shelter, Axel, who is now a state-of-the-art, highly trained K-9 police dog.
When a successful video game company tries to convince Velma to work for them in San Francisco, the gang becomes embroiled in the mystery of a video game villain.
Velma has an interview at the prestigious Kingston University; the only problem is, the dean wants the gang to solve the mystery of the ghost of the school founder.
Fred gets a call for help from Chuck, his daredevil of a best friend, leading the gang on a rescue mission deep in the caverns of an ancient civilization.
The gang climbs aboard the cruise ship run by Fred's cousin despite Velma's strong dislike of water.
The gang visits the set of Scooby's favorite TV show and he meets a dog actress who plays a detective on the screen.
Shaggy takes the gang to the Minor League Baseball stadium of his youth only to learn that it's about to be shut down because a ghostly baseball player is scaring away the fans.
Fred switches places with the tour guide at a history museum to give him a chance to lead the gang in solving a mystery.
To solve the mystery of a creepy Crystal Crawler, the gang must venture into the Crystal Canopy.
Daphne brings the gang to a Victorian murder mystery party so they can dress up and solve a fake mystery; when a headless count starts kidnapping people, the gang must stay in character as they tackle the real caper.
The gang pretends to be a rock band to solve the mystery of a ghostly performer haunting her former venue.
When Shaggy and Scooby's favorite chef opens his own restaurant, a monstrous yeti threatens the opening night.
When an artificial intelligence takes over the building of a trendy tech company, the gang must solve the computerized mystery.
Daphne's dream of meeting extraterrestrial life becomes a nightmare when the gang gets caught up in the mystery of an alien monster.
The gang is in Mexico for a Day of the Dead celebration when the legendary ghost El Bandito makes an appearance.