Kent Brockman does a human interest story about Frank Grimes. Frank Grimes is a man who has had a VERY difficult life and Burns sees the report and tells Smithers to hire him. When Grimes comes to work at the plant, he meets Lenny, Carl, and Homer. All three of them are very stupid in this episode, but no one more so than Homer. Grimes can’t stand any of them, especially after Homer starts calling him Grimey. He is very concerned that Homer is an unsafe employee, after Homer nearly drinks acid and Grimey saves his life. Then Burns yells at Grimes about it and Frank Grimes decides to get even. He gets Homer to enter a nuclear plant design contest, but doesn’t tell him that it is for kids only. Although he is an idiot, Homer works hard at it and wins the contest. Everyone is impressed with Homer and this sends Frank Grimes over the edge. He has a breakdown and accidentally electrocutes himself. At his funeral, Homer once again steals the show. Meanwhile, Bart makes the winning bid ($1) on an abandoned factory at an auction and hires Milhouse as his night watchman. They do a lot of dangerous things in the building until one day, it tips over and crumbles.

Troy McClure introduces three possible spin-offs from the series. Chief Wiggum, P.I. Chief Wiggum is a detective in New Orleans and Principal Skinner is his assistant. Their first case pits them against Big Daddy, an operator in New Orleans who’s kidnapped Ralph. The Love-Matic Grampa Moe’s Love Tester machine has a special soul… Grampa’s. He tries to put Moe’s love life into order. The Simpson Family Smile-Time Variety Hour The family returns in a new variety show format a’la The Brady Bunch Hour with a side of Laugh-In. Their show even features a new girl playing Lisa the way a new girl played Jan on the Brady show.

Bart’s class goes to the police station on a field trip and while he is there, he just can’t resist pulling a prank; meanwhile, Lisa’s class is not challenging for her at all. Chief Wiggum meets with the Homer and Marge and recommends military school for Bart. Homer and Marge tell Bart they are going to Disneyland, but trick him and take him to military school. Bart does not want to be there from the get-go, but Lisa sees the discipline the cadets receive and decides to stay there with Bart. She is the first female ever to join the academy, so she gets a hard time from the other cadets. Bart starts to fit in after a while, and tries to keep the fact that he cares about her a secret. A final challenge awaits Bart and Lisa; they must pass a physical test called The Eliminator. Bart helps Lisa to train in secret and when they both pass, they go home.

In the conclusion of the cliff-hanger which ended season six, everyone learns the identity of Mr. Burns’ mysterious assailant. The culprit turns out to be the sweetest little suspect of all.