After being sold an invisibility potion by the Red Guy, Cow really believes she is invisible, despite not drinking it. She goes on to cause trouble, in which she, somehow, gets away with.
Cow and Chicken’s anarchic cousin, Sow, comes over for a visit. When she comes over to school, Cow ends up taking the blame for Sow’s misguided actions.
Serving a 99-year sentence at a correctional facility with I.R. Baboon, Weasel starts to feel concerned about the inhumane correctional devices that are set up on fellow prisoners.
Cow and Chicken find a time machine, and decide to travel in time. Things go wrong when the Red Guy shows up in an attempt to change the course of history for the worse.
Cow still has a security blanket (which happens to be Supercow’s cape), but Chicken objects to her still carrying around such an item at her age, which leads to it being thrown out on the way to school. While Cow is depressed, the principal (the Red Guy) decides to torment Flem and Earl.
Cow is with her family at the fair, where she takes her new doll, Piles the Beaver with her. When she loses Piles, Cow must chase after and recover him.
Cow has started taking up ballet, but due to her weight, she brings the house down (literally). Fortunately, she finds someone to help her find fame, in the form of homewrecker Mr. Slacksoff (the Red Guy).
Weasel works at a hotel as the manager, whereas I.R. is his incompetent bellhop. However, Weasel needs to rely on I.R.’s help when an acclaimed cannibal actor (The Red Guy) wants to eat him for dinner.