A dark comedic adventure about the titular Bunnicula, a vampire rabbit, Mina, his owner, and her two pets, Chester the cat and Harold the dog. Instead of blood, Bunnicula feeds on carrots to sustain himself which gives him super abilities which come in handy on his and his friends escapades.
Episode 1
When Chester is tired of Bunnicula's ghoulish mischief he decides to lock him back in the cellar. But this proves to be a mistake when a mummy monkey attacks the apartment.
Episode 2
A magical harmonica attracts zombie fish to the Orlock apartments and Bunnicula tries to stop them from scaring Mina.
Episode 3
After Harold comes home from surgery after eating a soccer ball, Chester and Bunnicula commit to helping their friend get some rest and read him a bedtime story. But after a monstrous hybrid of a spider and a lamb emerges from the book, they’re afraid their immobilized friend will be eaten! Bunnicula and Chester team up to save their friend.
Episode 4
When a ghostly Southern alligator looking for her missing earring is haunting the sewers spreads a crying curse through the apartment, only Bunnicula can set things right before everyone drowns in their own waterworks.
Episode 5
After Mina and her friends try to invoke Bloody Mary in the hall mirror, Harold discovers that they’ve actually conjured a mud monster that he’s super excited to introduce to his friends.
Episode 6
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.
Episode 7
When Chester realizes that Bunnicula isn't enough to protect the Orlock Apartments from supernatural forces, Bunnicula introduces his friends to the Knight Owl — a dedicated defender of the downtrodden, but the family's new protector seems to be a little too good at his job.
Episode 8
When the spirit of an evil Viking warrior returns to life in the body of Harold's squeaky dog toy, it wants revenge against the rabbit that trapped it in the first place.
Episode 9
After Chester assumes that an eggplant will cause Bunnicula to lay a monster egg, Bunnicula decides to pull a prank on Chester and dresses up as his own baby.
Episode 10
Chester isn't acting like himself lately, but the trouble doesn't really start until Bunnicula realizes that Chester has been watching a possessed video cassette.
Episode 11
Chester takes a shine to a sinister Venus flytrap because the plant scares Bunnicula, but the plant has plans of its own!
Episode 13
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.
Episode 15
Fluffy the Vampire Pointer sets out to vanquish Bunnicula once and for all when she suspects Mina and her pets are under his control.
Episode 12
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.
Episode 14
Bunnicula and Chester go into the internet to stop an evil raven from feasting on the anger and hatred of everyone online.
Episode 16
A disfigured guinea pig visits Bunnicula and has plans to banish Chester to the Hole of the Unworthy.
Episode 17
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.
Episode 18
Mina leaves the pets out overnight in the spooky old dog house, not realizing that the doghouse is haunted by the ghost of a playful puppy from the 1930s, who won't rest until someone plays with him.
Episode 19
Chester steals Bunnicula's foot to improve his luck; Bunnicula's luck gets worse and worse.
Episode 20
Bunnicula summons the ghost of Mina's cooking idol to aid her.
Episode 21
After Bunnicula accidentally bites Chester, the cat is convinced he's also becoming a creature of the night.
Episode 22
Mina is plagued by nightmares, so Bunnicula pulls Chester and Harold in her dreams to help solve the problem.
Episode 23
Bunnicula consumes a spicy ghost pepper, then starts burning up everything in sight; Harold and Chester try to cool things off.
Episode 24
Bunnicula and his friends realize Mina's dad has been played for a dummy when he goes on a date with a female ventriloquist.
Episode 25
Bunnicula finds himself far from the Orlock Apartments at sunrise, and desperately attempts to return home before the sun's rays turn him to ash.
Episode 26
After Mina performs some horrendous karaoke on an old blues singer’s song, Bunnicula intervenes to stop the blues singer’s ghost from ruining Mina's life.
Episode 27
A screaming spectral bear named Siobhan arrives at the apartments, and Bunnicula discovers she is scared of non-supernatural creatures.
Episode 28
Things begin to mysteriously disappear around the Orlock Apartments; the gang follows clues to the mysterious Mr. Molesbee in Apartment 13.
Episode 29
Trapped in Bunnicula's evil puzzle box, Chester and Harold must solve three puzzles before they can escape.
Episode 30
Patches the Weredude enlists Chester to help him woo his girlfriend, but Chester falls for the same girl.
Episode 31
The pets are thrilled when a silver collar turns Bunnicula into a kindhearted, totally normal rabbit.
Episode 32
Chester and Harold try to stop a pet calendar photo shoot that threatens to expose Bunnicula's vampire secret.
Episode 33
Mina's new friend, Russell, has a dark secret; can Bunnicula help the poor lad or will he simply eat him?
Episode 34
When a vampire tick attaches itself to Harold's butt, Bunnicula has to remove it before bad stuff goes down.
Episode 35
After a magical artifact combines Chester, Harold and Bunnicula into one uberpet, they must find a way to unmesh themselves.
Episode 36
When Mina wants to see a real ghost, her pets hire one to give her a little bit of a scare.
Episode 37
After an evil portrait swallows up Mina and her dad, the pets must find a way to break the spell.
Episode 38
Mina's imaginary friend returns to her life; Bunnicula is set on a collision course with a supernatural creature he's never had to face before.
Episode 39
Chester feeds Bunnicula mixed vegetable juices to get him to clean the house.
Episode 40
When Red Cap sets its sights on eating Mina and Becky for dinner, Bunnicula must save the day.
