Beavis and Butt-Head go to their nerdy acquaintance Stewart's house to watch a special pay-per-view event. When the pay-per-view bores them, they begin to torment Stewart.
Tantalized by a sexy yogurt advertisement on television, Beavis and Butt-Head decide they have to try some as soon as possible. Whey they get to the yogurt store they find the yogurt leaves a lot to be desired and the staff is less than sympathetic to their problems with it.
When Mrs. Dickie shows how unimpressed she is with Beavis and Butt-Head's science project, she forces them to work on a new project with Daria Morgendorffer, much to her objection.
When Principal McVicker gets fed up with Beavis and Butt-head's constant stupidity and uncontrollable laughter on every word that looks dirty to them for the final time, he puts them on a No Laughing prohibition. If caught laughing once more in class, they risk expulsion.
A day in the working life of Beavis and Butt-head at the local Burger World franchise, where they fool around, annoy customers (especially Tom Anderson), and serve mouse-burgers and french flies.
In order to prove having children aren't cute, Coach Buzzcut assigns the students together and makes Beavis and Butt-Head work together on their assignment as respect for the female classmates who adamantly refuses to work with either one.
An army sergeant accosts Beavis and Butt-Head and tries to get them to sign up for the armed services. The duo's stupid, disrespectful and downright suicidal behavior makes him regret that decision.
