This is a list of episodes for the Disney XD series Billy Dilley's Super Duper Subterranean Summer.
open/close all folders
Season One
- Lab Friends... Forever?: In the starter episode of the series, Billy Dilley's science fair project the Cheeserator gets struck by lightning and goes haywire causing Billy and his lab friends Zeke and Marsha find themselves stuck in a strange underground land called Subterranea-Tania. During their first day under the surface, they run into a group of Lizard Folk called "The Gorks", who have a hatred towards human surface dwellers.
- Surviving Billy: In their second day in Subterranea-Tania, Billy, Zeke and Marsha get captured by a vicious Pterosaur, and make their way back to the Cheeserator trough a path of dangers and monsters. After making their way back, they build a house from extra parts of the Cheeserator for saftey.
- Hey Judy: A cute female creature named Judy falls head over heels with Billy, who is too busy dealing with a crush of his own, an earthworm who he names "Lisa".
- Count Wretcher: Billy strikes up a friendship with a sludge-obsessed tyrant named Count Raymond Wretcher, who offers to help fix the Cheeserator for his evil plan to cover the entire surface world with his sludge.
- Calzones:
- Crab Hands:
- The Date:
- The Troggies Next Door:
- The Mushroom Prince:
- Welcome to the Hag House:
- Beastie Billy:
- Zartran:
- K is for Klutz:
- Tommy X:
- Billy/Willie:
- The Telltale Wart:
- Ol' MacBilly:
- Silly Spheres:
- Wretcherous Treachery:
- Jared:
- Sluggy:
- Double Bubble:
- The Glorp of the Gorks:
- Rat's Entertainment!:
- The Battle for Subterranea-Tania:
