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Episode 1
Lab Friends... Forever? -
Episode 2
Surviving Billy -
Episode 3
Calzones -
Episode 4
Crab Hands -
Episode 5
The Date -
Episode 6
The Troggies Next Door -
Episode 7
The Mushroom Prince -
Episode 8
Count Wretcher -
Episode 9
Hey Judy -
Episode 10
Welcome to the Hag House -
Episode 11
Beastie Billy -
Episode 12
Zartran -
Episode 13
"K" is for Klutz -
Episode 14
Tommy X -
Episode 15
Billy/Willie -
Episode 16
The Telltale Wart -
Episode 17
Ol' MacBilly -
Episode 18
Silly Spheres -
Episode 19
Wretcherous Treachery -
Episode 20
Jared -
Episode 21
Sluggy -
Episode 22
Double Bubble -
Episode 23
The Glorp of the Gorks -
Episode 24
Rat's Entertainment! -
Episode 25
The Battle for Subterranea-Tania
Billy Dilley's Super-Duper Subterranean Summer 2017
5.3HD1 Seasons
The adventures of science-obsessed Billy Dilley and his lab partners Zeke and Marsha
