Billy and his friends find themselves trapped in a world beneath Earth's surface when Billy's science project goes wrong. The kids work together to repair the Cheeserator, and embark on a number of adventures in the subterranean world.
EPISODE 1
Lab Friends... Forever?/Surviving Billy
Billy's science project takes a terrible turn, and he and his two friends are stuck in a strange land. Billy, Zeke and Marsha must navigate their way back to the Cheeserator.
EPISODE 2
Calzones/Crab Hands
Zeke, the King of Calzones is forced to defend his title when a rival chef appears on the scene. Billy creates a grafting machine and uses it to add different creature parts to his body.
EPISODE 3
The Date/The Troggies Next Door
Marsha misses her date with Greg Hastings, her crush from summer camp. A tribe called the Troggies leave Zeke intimdated with their ability to do everything better than him.
EPISODE 4
The Mushroom Prince/Count Wretcher
Billy wants to find out if Marsha has written about him in her newsletter. Billy makes a new friend who is obsessed with sludge, but Count Wretcher wants the Cheeserator for his own benefit.
EPISODE 5
Hey Judy/Welcome to the Hag House
While Billy is nursing a crush, a grass nymph named Judy develops a crush of her own, on him. Subterranea-Tania's resident sorceress, Hag Witch, takes Billy on as her new apprentice.
EPISODE 6
Beastie Billy/Zartran
Billy analyses a rock taken from a sacred patch, leading Marsha to believe he has been cursed. Zartran the barbarian moves in with Billy and his friends, and shares stories of epic battles.
Travis Willingham
James Arnold Taylor
Andy Milonakis
Richard Steven Horvitz
Susan Blakeslee
Kevin Michael Richardson
Kerri Kenney-Silver
Mary Jo Catlett
Brian Doyle-Murray
Brian Posehn
Aaron Springer
