Season 1: (2006-2007]

# Title Director(s) Writer(s) Original Airdate(s)
1 "Queen for a Day" Matt Ferguson Alice Prodanou September 29, 2006 (2006-09-29)
The evil Insectiva tries to employ giant, mutated termites to destroy the city. Ty and Abby use termite scent to defeat Insectiva, who is currently using termite queen scent to make herself queen of the termites. This episode is the pilot episode of Grossology.
2 "Slim Slime Man" Matt Ferguson Hugh Duffy October 1, 2006 (2006-10-01)
A bitter sewer worker merges with a slime mold and turns into a monster who attempts to smother the surface dwellers in slime.
3 "Fartzilla" Matt Ferguson Sean Cullen October 8, 2006 (2006-10-08)
The villain, Fartor wreaks havoc and seeks revenge on his cruel brother by causing a fart epidemic in order to fuel a giant robot called Fartzilla.
4 "The Perfect Stink" Matt Ferguson Simon Racioppa, Richard Elliott October 15, 2006 (2006-10-15)
Sloppy Joe, the world’s grimiest takes all the worst smells in the world and makes a giant stink bomb.
5 "The Scab Fairy (AKA: This Scab's For You)" Matt Fergus Ben Joseph October 22, 2006 (2006-10-22)
A former beauty queen invents a weapon that allows her to emulate the Scab Fairy (like the Tooth Fairy) and steal people's scabs so that she can inflict them on others.
6 "When Ya Gotta Go" Matt Ferguson Robin J. Stein October 29, 2006 (2006-10-29)
Lance Boil builds an infrasound ray gun that causes fluctuations in people’s bowels so they get instant diarrhea.
7 "Club Parasites" Matt Ferguson Robert Tinkler November 5, 2006 (2006-11-05)
Insectiva's back and she creates a strain of giant mind-controlling head lice that grow on all the kids’ heads at Ringworm High as she attempts to zombify the human race to do her bidding. Ty & Abby get into a fight by calling each other names.
8 "Go Fish" Matt Ferguson Richard Clark November 12, 2006 (2006-11-12)
Mutant hagfish attack the town. Ty and Abby follow their slimy trail of destruction but how will they bring these former bottom dwellers to justice once they catch up to them?
9 "It's Gotta Be the Shoes" Matt Ferguson Ben Joseph October 19, 2006 (2006-10-19)
A crazed basketball player creates a plague-like Athlete’s Foot epidemic using his new brand of popular running shoes.
10 "Owl Most Foul" Matt Ferguson Dave Dias December 31, 2006 (2006-12-31)
A giant Owl terrorizes the people of town and especially its pigeons. Meanwhile, Lab Rat refuses to come out of the facility room because of his fear of the outside world.
11 "Yack Attack" Matt Ferguson Alice Prodanou January 14, 2007 (2007-01-14)
An attack on the city's water system by Sloppy Joe (who thinks he's in vacation) creates a plague of poisoning amongst the town's people.
12 "The Greatest Race Ever Crawled" Matt Ferguson Richard Clark January 21, 2007 (2007-01-21)
When the GRS-1 comes up short, Ty and Lab Rat design and build the TYMOBILE – a kicking set of wheels that can crawl, leap, or otherwise get around just like your favorite insect. But when Ty’s goaded into a race by Insectiva and her cadre of giant bugs, it’s all part of her evil plan to plant ultrasonic generators in the country, allowing her to control a cloud of locusts and cover the city with the hungry insects!
13 "Kid Rot" Matt Ferguson Robin J. Stein January 28, 2007 (2007-01-28)
There is a new kid in school, who kind of smells. This repels most kids but attracts Ty and Abby. It turns out that through a science experiment mishap he now has the ‘rotting touch’ and everything organic he touches rots immediately. Can Abby and Ty cure him...or does he really want to be cured?
14 "The Insider" Matt Ferguson Jeremy Winkels February 4, 2007 (2007-02-04)
When Ty personally stops the latest of Lance Boil’s evil plans, the ex-grossologist villain decides to deal with Ty once and for all. After miniaturizing himself and tricking Ty into drinking him, Lance races through Ty’s veins headed for his cerebral cortex. His plan - make Ty have absolutely zero IQ! Luckily, Abby’s not afraid to dive in after Lance – too bad Ty refuses to sit still and let her work, he’s got a school battlebot competition to win!
15 "All Together Now" Matt Ferguson Ben Joseph February 25, 2007 (2007-02-25)
Instectiva, Lance Boil and Sloppy Joe join forces to shut down the Bureau of Grossology by afflicting the members simultaneously with villain sized doses of horseflies, halitosis and acne, thus failing the inspection of the Gross Lab. Can the now incredibly gross looking, smelling and feeling Grossology team overcome these afflictions before the Gruesome Threesome take over the city?
16 "Oldie But A Goodie" Matt Ferguson Richard Clark March 4, 2007 (2007-03-04)
When Abby defuses a mysterious device Lance Boil planted in the middle of town, she gets bathed in a green ray that instantly starts her aging at 6000 times the normal rate! Now, she and Ty have to track down Lance, reverse the process, and stop him from unleashing the ray on the entire city - turning everyone into octogenarians! Worse, they have to do it before Abby ages her way into dust!
17 "Survival of the Grossest" Matt Ferguson Simon Racioppa, Richard Elliott March 18, 2007 (2007-03-18)
It’s science competition time at Ringworm jr. High, only this time there’s a new challenger for Ty’s crown – Patrick, a kid with as much science knowledge as Ty himself. But when Ty decides to up his fruit-fly evolution project with a little mutagenic kickstart, things go wrong almost immediately. Now, he and Abby are up against terrorizing fruit flies that can breed and evolve so quickly that it seems like nothing can stop them. Unless Ty’s willing to ask Patrick for a little help...
18 "School's Grossed Out For Summer" Matt Ferguson Ben Joseph April 1, 2007 (2007-04-01)
Ty and Abby get stuck in the school with Paige and Naomi when they miss a bus that is to take them camping with their class. If this were not troubling enough, they find that a mad proctologist, Dr. Colon, is using the school as a breeding ground for a giant intestine that he intends to snake around the world. But what is his ultimate plan?
19 "Vein Drain" Matt Ferguson John Mein April 28, 2007 (2007-04-28)
When people start showing up with bite marks on their necks, Ty and Abby can’t help but wonder if maybe vampires aren’t a myth after all. But when they dig a little deeper, they discover that it’s another kind of blood sucker that’s causing trouble – leeches! Worse, these hungry invertebrates are led by 869, a giant mutated talking leech that’s had enough of his kind being trapped in hospitals under harsh fluorescent lights. He only has one goal: freedom for leechkind!
20 "Silent But Deadly, Part 1" Matt Ferguson Simon Racioppa, Richard Elliott May 12, 2007 (2007-05-12)
Gassy super villain Fartor returns with a scheme to fart-up the entire planet! But with a plan this big he needs help - and he’s got his sights set on Ty. What will happen to our team of Grossologists when one of them turns to the fart side?
21 "Silent But Deadly, Part 2" Matt Ferguson Simon Racioppa, Richard Elliott May 19, 2007 (2007-05-19)
Fartor and his new apprentice, Far-Ty join forces to drill into the planet core and turn the earth into one big gas planet. Will everyone on Earth be forced to breathe noxious gas and join Fartor’s army of the fart-breathers or will Abby be able to save her brother and the planet from a lifetime of stink!
22 "The King of Rottingham Forest" Matt Ferguson Robin J. Stein June 2, 2007 (2007-06-02)
Kid Rot returns and his powers are out of control.. The forest is rotting and Kid Rot is behind the destruction! Will Abby and Ty stop his rotting tide of evil before he destroys the planet?
23 "Lights Out" Matt Ferguson Jeremy Winkels June 23, 2007 (2007-06-23)
A new nocturnal villain, Darko Crevasse, plunges the city into darkness with the help of his army of creatures of the night. Ty and Lab Rat scramble to shed some light on the problem before it’s lights out for everyone.
24 "Boogerman (AKA: FrankenBooger)" Matt Ferguson Dave Dias July 12, 2007 (2007-07-12)
Sloppy Joe, the world’s filthiest villain returns and this time he’s not alone. He’s created a buddy made of snot and it’s up to Ty and Abby to stop the booger monster before he sucks up all the mucus in town!
25 "A New Leaf" Matt Ferguson Simon Racioppa, Richard Elliott July 21, 2007 (2007-07-21)
Abby learns what teamwork is all about when she’s kidnapped and imprisoned in a hothouse full of giant, man-eating plants - and her only hope for survival is Insectiva!
26 "Heave It or Leave It (AKA: You Heave, You Leave)" Matt Ferguson Robin J. Stein July 28, 2007 (2007-07-28)
Abby and Ty are jazzed to be contestants on the hottest game show on the planet where their gross skills and iron stomachs could make them stars. Only trouble is, the show is an elaborate trap and Lance Boil is behind it all! With Abby and Ty out of the way who will stop Lance’s pus plan?