Long John Scarechrome shows Prime Evil a map leading to a non-existent buried treasure. Knowing that the route would take them to the planet Doom, Prime Evil sends Scarechrome to deliver the map to Ghost Command. As Eddie, Tracy and Belfry head off to find the treasure, Jake and Jessica realize Their friends are missing...moreless
In order to stop the Ghostbusters from interfering with his plans for Halloween, Prime Evil turns the Ghostbusters into kids. Their fathers come out of retirement to help save the day.
A young boy accidentally frees the king of the trolls, but the Ghostbusters aren't able to stop him. Their fathers, who busted the troll the first time, join forces to bust him again.
Jake and Eddie make their young friend Corky an honorary Ghostbuster, but to impress one of his friends he steals Ghost Buggy and tries to bust some ghosts on his own and gets in trouble.
While the Ghostbusters are visiting the future a girl who plays pranks sees two real vampires. Because of her reputation nobody believes her but Eddie.
Prime Evil tries to steal the magic of Merlin the magician, but his henchmen capture Merlin's apprentice Fuddy and bring him back to Hauntquarters instead.
Dracula comes back and tries to take over Transylvania. The Ghostbusters are called to stop him, but they find their usual tricks don't work on vampires.
Prime Evil sends a gift to Madam Why that allows him to capture her. When the Ghostbusters try to save her they end up captured too. Jessica, Belfry and Futura mount their own rescue attempt.
An unscrupulous businessman has his workers dump toxic waste into the sewers to save money, and the fumes cause the haunted devices around Ghost Command to attack the Ghostbusters.
A young boy is terrified when he sees Fangster in his telescope. The Ghostbusters wonder why Prime Evil would go to so much trouble over one little boy.
Prime Evil sends his ghosts back to ancient Rome to steal a magic golden wreath that lets its owner see the past, present or future. The Ghostbusters help Madam Why's ancestor keep it out of their hands.
Prime Evil tries to steal a live dinosaur egg to train the dinosaur as a slave. The Ghostbusters have to deliver the newly hatched dinosaur to his mother before Prime Evil can succeed.
When Prime Evil leaves Hauntquarters to take his vacation, Bratarat tells the others Prime Evil left him in charge so he can impress a girl ghost named Bratarina.
Prime Evil recruits the Wailing Banshee whose screams can cause thunderstorms. The Ghostbusters enlist the help of a leprechaun to learn the banshee's weakness.
The Headless Horseman defects from Prime Evil's service to warn the Ghostbusters that he's after a medallion that will make him more powerful than ever. Jake has a hard time accepting Headless's help because of the ghost driving his grandfather to ruin.
Prime Evil's rival from "A Friend in Need" returns and casts a spell on Prime Evil. The more Prime Evil tries to use his powers, sooner he will disappear. This is the second most horrible thing for Prime Evil. The first one is having to do a good deed to break the spell. Will the Ghostbusters help Prime Evil again?moreless
Prime Evil captures Eddie and plans to ransom him to the other Ghostbusters, but as Jake and Tracy struggle with an infestation of ghosts on their own, Prime Evil wonders if Eddie is more trouble than he's worth.
As Jake and Futura attempt to rescue Tracy, Eddie gets lost and is worshipped by the egyptians as the ghost of the great pharaoh. The ghostbusters must race to get their act together in an effort to locate the next piece of the Stone Tablet.
In Camelot, The Ghostbusters team up with Merlin's apprentice Fuddy in order to battle Sir Trance-a-lot and recover the next piece of the Stone Tablet. They travel to ancient Egypt where Apparitia and Airhead capture Tracy intent on mummifying him.
Arriving in the Future, The Ghostbusters bust Their first ghosts and meet Futura, the bewitching Ghostbuster of the Future! They learn of an ancient tablet which has clues to their fathers' whereabouts leading them back in time to Camelot.
The original Ghostbusters decide to retire and turn their ghostbusting business over to their sons. When their fathers are kidnapped, Jake and Eddie must overcome their fears and go ghostbusting sooner than they expected by journeying to the future!