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Snot Now, Snot Ever
Episode number: 1
Overview: A new recruit changes the dynamics in the lab as Snot Faucet's cold threatens a sticky end for everyone!
Pimple Fever
Episode number: 2
Overview: When Septico's long lost brother comes to visit, he's repulsed by the grossness of the Yuck Lab - until he accidentally gets turned into a poop loving housefly.
Arachnattack
Episode number: 3
Overview: A horrible, hairy monster is unleashed as Septico's arch-nemesis arrives for an inspection of the Yuck Lab.
Dirty Rotten Birthday Girl
Episode number: 4
Overview: Septico's attempt to throw Pristine a birthday party turns into a disgusting food eating competition.
Fungus Humungus
Episode number: 5
Overview: Pristine's fear of fungus could destroy the lab.
Enter the Toothworm
Episode number: 6
Overview: Septico tries his hand at wormcharming and Pristine hides a toothache when their dentist Aunt comes to visit.
Septico's Felonious Funk
Episode number: 7
Overview: Septico's quest to take his body odor to new stinktacular heights forces Pristine to redesign her latest invention, the Smell-O-Vac, for her...
That's So Fly
Episode number: 8
Overview: When Septico's long lost brother comes to visit, he's repulsed by the grossness of the Yuck Lab - until he accidentally gets turned into a poop loving housefly.
Gastrov Flatulinsky
Episode number: 9
Overview: Septico challenges World Fart Champion Gastrov Flatulinsky to a farting competition.
Attack of the Yucky Plants
Episode number: 10
Overview: When Septico's college crush, Botany "expert" Egregious Flytrap visits the lab, the gang tries to impress her with various disgusting plants, not realizing she wants to use those plants in a diabolical experiment.
Urine Luck
Episode number: 11
Overview: After Pristine turns down the chance to give a prestigious speech, Septico finds out she passed because she has urine control issues, and he's determined to whip her bladder in shape for her to give the speech.
Parasite Pirates
Episode number: 12
Overview: When a crew of pirate parasites takes over the Yuck Lab and infects the gang, Septico has to figure out a cure for the various parasites.
No Guts, No Glory
Episode number: 13
Overview: The lab gang is left in charge of an annoying little girl with a tummy ache, as they scramble to prepare their submission for the World Yuckology Expo.
The Yuck Trifecta
Episode number: 14
Overview: When Pristine comes down with an increasingly more disgusting series of yucky conditions - Septico must save her from her body's own disgustingness.
Pristine Hair-Wolf
Episode number: 15
Overview: A horrible, hairy monster is unleashed as Septico's arch-nemesis arrives for an inspection of the Yuck Lab.
Kung Poo
Episode number: 16
Overview: Septico's quest to do the perfect poop brings an ancient and dangerous curse on the lab.
Antpocalypse Now!
Episode number: 17
Overview: When the lab is overrun by an ant colony, Septico and the team have to bargain with the ants - before the O'Cleans can send in the Cleaners!
Yuck Lab Z
Episode number: 18
Overview: Septico and Pristine seem to swap personalities after they're stung by zombie parasite wasps.
Roach Motel
Episode number: 19
Overview: Septico's fascination with cockroaches causes chaos when he invites a specialist cockroach trainer to the lab.
The Big Stink
Episode number: 20
Overview: Leonidis' locks down the lab when his favorite stinky sandwich gets stolen, so Septico has to expose the gang to various stinky animals to find the culprit.
Oh Rats!
Episode number: 21
Overview: When it's revealed that Durp-E is secretly keeping a pet rat in the Yuck Lab, everyone is shocked as to whom the cringing, shrieking aversion to them is.
Everything's All-Mite!
Episode number: 22
Overview: Septico and the gang try to stop the O'Cleans from destroying the world's Mite population by creating an ad campaign to show that microscopic mites are actually cool.
Around the S Bend
Episode number: 23
Overview: A monstrous Fatberg emerges from the sewers to wreak havoc on the lab!
Blisters and Shingles and Warts! Oh My!
Episode number: 24
Overview: All the gang get painful and gross skin conditions when Pristine attempts to cover her spying by helping Septico get into the record books for the world's biggest blister.
All's Yuck That Ends Yuck Part 1
Episode number: 25
Overview: Reeling from Pristine's betrayal, Septico advertises for her replacement and is visited by a seemingly perfect candidate.
All's Yuck That Ends Yuck Part 2
Episode number: 26
Overview: The fate of the lab is at stake as the gang is held hostage by their new boss.