Episode 1
Episode 2
Someone's filling the sewers with alligators, which are making their way to people's toilets.
Episode 3
Episode 4
Sloppy Joe opens a fast-food joint with portions so big that half the food is thrown away, creating a garbage overload in the city.
Episode 5
The Grossologists tangle with a former hair stylist who has a space satellite that could make everyone in the world go bald.
Episode 6
Sloppy Joe creates a body-odor epidemic during a heat wave.
Episode 7
Roger Pinkeye uses smelly cheese to create a monster out of mold.
Episode 8
Lance Boil drops an allergy bomb at a carnival.
Episode 9
A major case of acne spreads through Ringworm High.
Episode 10
Episode 11
Episode 12
An exclusive spa opens and customers are raving about its fancy bath products, but they're all bug-based and created by Insectiva, the insect queen.
Episode 13
A disgraced opera star is set on revenge and plans to blow everyone away with destructive burps.
Episode 14
A candy man comes to town with treats that cause bad breath.
Episode 15
A mechanical swamp monster is causing power outages all over the city.
Episode 16
Episode 17
Abby notices that holiday cheer is lacking during the Christmas season, especially with Sloppy Joe playing the local Santa.
Episode 18
Ty and Abby recall their early days as Grossologists.
Episode 19
Roger Pinkeye kidnaps Lance Boil, hoping to use him to get all the Grossology secrets.
Episode 20
Episode 21
Episode 22
Little pet snakes are sold all over town before they morph into deadly beasts.
Episode 23
Frederick Follicle returns to town, bringing a hairy epidemic with him.
Episode 24
Insectiva and Sloppy Joe are determined to ruin Valentine's Day.
Episode 25
Fartor returns with an explosive plan to send a gassy meteor on a collision course with Earth.
Episode 26
Darko Crevasse returns with an army of zombie roadkill animals, and he's on a mission to ruin Halloween.
