When Billy Dilley's science fair project the Cheeserator gets struck by lightning and goes haywire, Billy, his lab pa...

On their second day in Subterranea-Tania, Billy, Zeke, and Marsha find their way back to the Cheeserator after gettin...

Zeke, the King of Calzones, must defend his title when a rival chef enters the picture.

Billy invents the grafting machine and adds creature parts to his body.

Billy and Zeke help Marsha find romance, but an unexpected guest could ruin everything.

Billy and Zeke have an epic sports showdown with the neighbouring Troggies.

Billy repeatedly tries to steal Marsha's diary. Billy is excited to meet Count Wretcher, an eccentric neighbour and f...

Billy strikes up a friendship with the sludge-obsessed Count Wretcher, who offers to help fix the Cheeserator for his...

Billy meets a new friend and a new romantic interest on the same day and is forced to choose between the two.

When Billy becomes the new apprentice to Subterranea-Tania's resident sorceress Hag Witch, the two concoct a love pot...

Billy takes extreme measures when Marsha convinces him he has brought a curse upon himself.

Billy invites a heroic warrior named Zartran to stay at his house.

Billy and Zeke try to figure out Marsha's unexplained bout of klutziness.

Zeke is blown away when he meets his favorite extreme sports hero, Tommy X.

Zartran convinces Billy to pretend to be the nephew of an old lady to scam her out of her secret treasure.

Billy is jealous of his new friend's wart.

Teased by a gang of lizard youths for his hair, Billy decides to save up for a wig by looking after Big Doug's prized...

Billy, Tony and Yucky guard Hag Witch's house while she's out, but they can't resist breaking into her spells cabinet.

Tired of being castle-bound by his domineering mother, Count Wretcher breaks loose and tries to convince Billy and fr...

Billy grows jealous when Zeke and Marsha befriend a strange creature called Jared, who eventually turns out to be a h...

Feeling ignored by Anaximander, Billy decides to take in a new pet, a slug called Sluggy.

When Zeke starts avoiding his chores by throwing his trash on the roof, he and Billy end up dealing with a large-scal...

When the Gorks' sacred slime is tampered with, Billy is enlisted to help find the culprit.

When Anaximander starts molting his fur, the people of Subterranea-Tania decide to put on a show to make him feel bet...

As Billy, Zeke and Marsha prepare to leave Subterranea-Tania by throwing a "farewell party", Billy accidentally cause...