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Three siblings are trained as monster hunters by their tough old grandfather. There is just one problem. These kids are massive horror fans and love all kinds of monsters, and they always find a way to save the monsters.
Delighted by the idea of being monster hunters in training, Edith and Bo decide to stay and fulfill their destiny. But Ernest has serious doubts.
Delighted by the idea of being monster hunters in training, Edith and Bo decide to stay and fulfill their destiny. But Ernest has serious doubts.
The monster loving maniacs dive a little deeper into the fascinating world of "time slime". The most effective weapon in a monster hunter's arsenal.
When the monster alarm goes off, Arthur and the kids embark on their first mission together to counter a threat of enormous size and appetite.
A small paranormal disturbance quickly escalates into a full-blown animal exorcism ritual. But how do you drive a demon from a possessed hamster?
In a battle for control of the TV, Arthur and the kids make a bet. The kids have 24 hours to scare Arthur's pants off.
Furious with Arthur's refusal to teach her anything vampire-related, Edith leads a reckless mission to awaken a dangerous, undead substitute teacher.
Ernest goes on his first date. But Gruselbrook can be dangerous at night. Turns out the girl next door has a secret inside the mirror.
Mermaids are nice, sure. But the freshwater kind - Not so much. Perhaps the lady of the lake needs help from three young monster experts.
Tonight's lesson is ghost hunting. Get ready to meet Arthur's "terrifying" house ghost, Rebecca. But how can a ghost be living with a monster hunter?
Bo gets abducted by a family of trolls and loves it. Arthur completely overreacts as usual, setting the stage for a confrontation in the forest.
Dracula points Edith in the direction of an ancient book about vampires. The treasure hunt is on. But can you really trust a vampire?
Arthur tells the story of how he managed to capture Dracula in the past. It is a gruesome tale of blind luck, betrayal and doom.
Ernest is excited for jack-o'lanterns, costumes and trick or treating. Edith and Bo want to stay in. Arthur provides Ernest with the "perfect" costume.
Ishaani opens up to Ernest about her secrets. A trip to the other side of the mirror reveals just how deep the rabbit hole goes.
With Ernest and Ishaani trapped inside another dimension, Edith and Bo must capture Ishaani's mirror monster before Arthur can mess things up.
Sick of being bested by Dracula, Edith expertly manipulates her surroundings to wage an all out prank war against the ancient vampire.
A giant, energy eating bird is draining the Gruselbrook power plants. The Van Altens take to the skies to engage this beautiful but dangerous creature.
There's trouble in Gruselbrook park. Innocent kids are being harassed and robbed of their lunch money. This could be a case for "The Monster Police".
During a game of time slime paint ball with Arthur, Bo discovers a strange and adorable creature under her bed. An escape plan is hatched.
