Homer receives an evil hair transplant in "Hell Toupee." Then, Bart and Lisa get trapped in an Itchy and Scratchy cartoon in "The Terror Of Tiny Toon." Finally, Maggie is revealed to be an alien in "Starship Poopers."
Lisa cheats on a test and has a moral crisis when her perfect score qualifies the school for grant money. Meanwhile, Homer can't bring himself to cook a lobster, so he adopts it as a pet instead.
When Homer installs a cell phone tower on his roof to pay for his destruction of the Bill Of Rights, the machinery is put in Lisa's room, forcing her to move in with Bart. When the new living arrangement causes her stress, Homer agrees to try sensory deprivation therapy with her.
Homer finishes a cross country delivery that a trucker died before completing, taking Bart along for the ride. Marge and Lisa experience problems with the novelty doorbell they purchased.