Episode 1
Insectiva tries to destroy the city using giant, mutated termites.
Episode 2
Episode 3
Episode 4
Episode 5
Episode 6
Episode 7
Episode 8
Episode 9
Episode 10
Episode 11
An attack on the city's water system makes people sick.
Episode 12
Ty and Lab Rat design a vehicle that crawls and leaps like an insect, and then are challenged to a race by Insectiva.
Episode 13
A boy causes organic things to rot just by touching them, so Abby and Ty try to cure him.
Episode 14
Lance Boil shrinks himself and tricks Ty into drinking him so he can tinker with Ty's brain once inside his body.
Episode 15
Instectiva, Lance Boil and Sloppy Joe inflict the members of the Bureau of Grossology with parasites, halitosis and acne in an effort to take over the city.
Episode 16
While defusing a device Lance Boil planted in town, Abby gets hit by a ray that instantly starts aging her at 6000 times the normal rate.
Episode 17
Episode 18
A mad proctologist, Dr. Colon, breeds a giant intestine that he intends to snake around the world, unless Ty, Abby, Paige and Naomi can stop him.
Episode 19
Episode 20
Episode 21
Episode 22
Episode 23
Episode 24
Sloppy Joe creates a friend out of stolen boogers.
Episode 25
Abby is kidnapped and placed in a greenhouse filled with man-eating plants.
Episode 26