After Harold comes home from surgery, Chester and Bunnicula commit to helping their friend get some rest. But after a monstrous hybrid of a spider and a lamb emerges from a book, rest is the last thing on their minds.
After a ghostly alligator loses her prized possession, she spreads sadness throughout the Orlock apartments. Only Bunnicula, Harold and Chester can soothe the spirit and set things right.
Mina and her friends have conjured a mud monster that Harold is super excited to introduce to his friends - until he starts to discover duplicates of himself in the apartment.
When Chester feeds Bunnicula garlic as a way to remove his vampire powers, the bunny's fur falls off and he becomes a cute, dancing skeleton. But after Chester realizes that Mina's heart will break if she realizes Bunnicula is a real vampire, he and Harold must cover up the problem.
Bunnicula enlists the help of the Knight Owl to protect Chester from dog spirits, when the Knight Owl puts a protective barrier on Mina the pets have to find a way to reverse the spell so they can touch her without getting electrocuted in the process.
When the spirit of an evil Viking warrior returns to life in the body of a squeaky dog toy, it wants revenge against the rabbit that trapped it in the first place.
After Chester assumes that an eggplant will cause Bunnicula to lay a monster egg, the rabbit decides to pull a prank on Chester and dresses up as his own baby.
Chester isn't acting like himself lately, but the trouble doesn't really start until Bunnicula realizes that his friend has been watching a possessed video cassette.
Chester takes a shine to a sinister Venus flytrap because the plant scares Bunnicula, but the plant has plans of its own! When Chester desires to be human so he can impress Mina, he gets more than he bargained for after Bunnicula introduces him to Patches the Weredude.
Mina builds a vegetable monster for her science project, but when a blast of static electricity brings the creature to life, Bunnicula instantly falls for her charms. Fluffy the Vampire Pointer sets out to vanquish Bunnicula once and for all when she suspects Mina and her pets are under his control.
Chester and Harold help send Bunnicula into the Internet to stop the evil spirit of a raven who lives there, feeding off the anger and sorrow of his friends. But when the scope of the raven's power is revealed, will Bunnicula be enough to stop it?
Fed up with Bunnicula's shenangians, Chester decides to put him up for adoption, but when Harold ends up being taken away by a kooky old lady, the two must put their differences aside and save him.
Mina leaves the pets out overnight in the spooky old dog house in the Orlock courtyard, not realizing that the doghouse is haunted by the ghost of a playful puppy.
Jealous of all the good luck Bunnicula is having, Chester 'borrows' the lucky foot and replaces it with a banana. Bunnicula, frustrated with his banana foot, takes the foot of a taxidermied jackalope, only for the creature to awaken.
To help Mina with her cooking. Bunnicula summons the ghost of a famous chef. But she has other plans when she thinks that Mina has made a 'mockery' of her most famous dish.
When things begin to mysteriously disappear around the Orlock Apartments, the gang follows the trail of clues to the mysterious Mr. Moleberg in Apartment 13.
Patches the weredude enlists Chester to help him woo his girlfriend Elvira, but after Chester falls for the same girl, Bunnicula and Harold must diffuse the situation.
The pets are thrilled when a silver collar turns Bunnicula into a kindhearted, totally normal rabbit. That is, until a new threat arrives to terrorize the now-defenseless Orlock!
After Mina's imaginary friend returns to her life, Bunnicula is set on a collision course with a type of supernatural creature he has never had to deal with.
After Chester feeds mixed vegetable juices to Bunnicula to get him to clean the house, the results are so amazing that the cat keeps on feeding the juice to the rabbit. But two six packs might be more than Bunnicula can handle.
When a tiny troll has its sights set on eating Mina and Becky for dinner, Bunnicula must save the day! There's just one problem; he's never been invited into Becky's house!