At South Park Elementary, the special education class is having a science fair on Saturday. Nathan and his sidekick Mimsy plan to win the fair with a baking soda volcano diorama in order to impress females. Timmy and Jimmy are also partners in the fair and are studying tardigrades, having learned about them from watching The Octonauts. They have discovered that the water bears dance to Taylor Swift's music and Nathan is concerned that his experiment will lose to theirs. Later, he and Mimsy sabotage the water bears by adding a plugged-in hair iron and some lye to the bowl containing the water bears. Instead of killing them, the water bears advance socially and can now dance the hokey pokey. The next day, a helicopter filled with men in black suits and sunglasses arrive and state that they are there to help with the water bears experiment as they believe that water bears are somehow the key to their survival, and they demand the rest of the special education students to disregard their projects and focus solely on the water bears. When Nathan and Mimsy try to take credit for the water bears progression and refer to them as government workers, they reveal that they are actually with the National Football League (NFL) led by Jerry Jones, and are interested in the water bears in order to turn them into fans and help increase their decreasing ratings from national anthem protests.
Meanwhile, the girls at school become concerned for Heidi Turner, who has become fatter and adopted Cartman's aggressive and self-centered mannerisms since getting back together with him. Heidi is brought to Mr. Mackey's office where she is asked to be the judge for the science fair as she had previously volunteered to do so. Heidi objects but Mr. Mackey forces her to cooperate. Heidi continues to complain to others about judging the science fair and holds a school assembly to complain about the funding of what she considers frivolous programs such as the science fair. When Cartman raises objections to her behavior in the assembly, she is aggressive towards him as well.
Heidi's complaints at the assembly force Mr. Mackey and PC Principal to cancel the science fair, but when they inform the special education class of this, the NFL men draw guns on them and force them to continue the experiment. Heidi demands that Cartman do something, but when he calls her a "bitch", she forces him to change his tone and words. As the experiment progresses, Heidi steals the bowl of water bears and attempts to escape. Heidi is cornered and when Cartman begs Heidi to stop and to return to her old ways, she instead drinks the bowl of the water bears. The two later watch television together as she continues to be aggressive and demanding towards him while the NFL men begin studying Nathan's volcano.
Behind the Scenes
In the preview clip, Nathan and Mimsy were inviting Nicole, Wendy, and Isla to the science fair on Saturday. In the actual episode, Wendy and Isla were replaced in that scene by Nelly and Bebe, with Wendy's lines coming out of Nelly's mouth.
- "SHUT UP, KYLE!" Eric Cartman and Heidi Turner
- "IT'S NOT A TRAILER!" Theresa
- "Theresa, get over it. You live in a trailer park, it's not a big deal." Heidi Turner
- "Call me a bitch again." Heidi Turner
- "Football is dying." Jerry Jones
- "Screw all you guys." Heidi Turner
Moss piglets are a nickname for tardigrades, which are also referred to as water bears and space bears.