With the gang split up, Crystal Cove is being tormented by an apparition called Crybaby Clown.
A Russian museum exhibit comes to life spawning an evil witch named Baba Yaga.
Crybaby Clown kidnaps the citizens of Crystal Cove.
Crystal Cove residents destroy things.
A traveling curio wagon arrives in Crystal Cove, and a carnie-barker unveils the Hodag, a beast supposed to be found in the wilds of Wisconsin.
A work of art tries to destroy its creator.
The gang is at Crystal Cove Cemetery when they are attacked by the Graveyard Ghoul.
Deep-sea robots attack Cassidy. The gang helps her solve the case of who is sending them.
The mayor of Crystal Cove has his camping trip, so the gang are called in to investigate.
An evil goat man named Krampus sends the gang on a quest.
The gang visits a ghost town that was once known as Gatorburg.
Crystal Cove beach is attacked by a Man Crab during a volleyball tournament.
A new ghost student takes a fancy to Fred.
A gnome attacks guests of The Royal Knights Faire.
Scooby is suspected when a mechanized beast terrorizes the town.
While the gang spends a weekend at Darrow College, a creature begins terrorizing the campus.
The gang is invited to a convention where sleuthing teams compete to solve a mystery.
Kung Fu wizards attack the town to get to an exchange student staying with Velma.
When Velma feels like a fifth wheel, she begins a dangerous investigation on her own.
Theme park Creepy Spooky Terror Land is besieged by an ancient beast with the body of a dragon, the face of a man and the tail of a scorpion.
Fred's favorite explorer, Rick Spartan, has arrived in town to take over the school's biology class. But Rick is not alone.
A poltergeist attacks the mayor in his home.
There's a new lawman in town, and his name is Dead Justice! An undead cowboy sheriff who in the past patrolled the streets of Crystal Cove, Justice has now come back for his old job.
The Scooby gang is getting close to finally finding out what happened to the original Mystery Incorporated kids.
The mystery comes to an end. The Scooby gang finally finds out what happened to the original Mystery Incorporated and why they vanished.