Hildie and Beatie's ghost nephew throws a party after they go on vacation, and Tom and Jerry have to keep him from destroying the house and their crystal ball.
A dog with a severe case of bad luck hires Tom and Jerry to retrieve a red gem that gives the holder immunity to bad luck; Tom hallucinates about being a mouse.
Two castaways starving on a raft come upon an island inhabited by Bugs Bunny, who looks like a tasty meal, so the castaways run around trying to catch Bugs.
While fighting over who picked the best flowers for Granny, the babies destroy her garden; meanwhile, Sylvester learns to conquer his fear of lightning.
The babies are afraid of the toilet but soon find out it's an alternative to diapers; Petunia gets hooked on watching TV and no longer plays with her friends.
Daffy Duck thinks Porky Pig is the Suburban Strangler; Lola Bunny breaks her leg during a checkup, and Bugs Bunny has to take care of her for six weeks.
The crew rund into actor Kristen Schaal while they are investigating a haunted hospital, and they try to solve the mystery of the ghost of Dr. Phineas Phrag.
The Quests travel to Calcutta to investigate reports of nerve gas being used on local residents, and Hadji saves Dr. Quest from an assassination attempt.
While Dr. Quest is working on a revolutionary new weapon, an unidentifiable aircraft suspiciously lands near his base carrying a mysterious black sphere.
The masked marauder strikes again and a local hero is hired to catch the villain; Bugs gives the hero a hard time until he realizes the masked marauder is Bugs.
Two castaways starving on a raft come upon an island inhabited by Bugs Bunny, who looks like a tasty meal, so the castaways run around trying to catch Bugs.
When Vincent Van Ghoul contacts Mystery Inc., they embark on a final investigation into the thirteenth ghost before they retire from conducting mysteries.
Popeye takes Olive out dancing at Wimpy's Café, but after Olive rebuffs Bluto's advances, Bluto decides to get even by disrupting Popeye and Olive's dance.
Olive flies away with an aviator and leaves Popeye behind, but Popeye hops into another plane after seeing that the pilot is making Olive paint the plane.
Popeye tries to woo Olive Oyl by giving her a trained parrot, but when Bluto sees the gift, he tries to sabotage Popeye's plan by setting the bird free.
The masked marauder strikes again and a local hero is hired to catch the villain; Bugs gives the hero a hard time until he realizes the masked marauder is Bugs.