Bart fails four consecutive history exams and the school psychiatrist recommends that Bart repeat the fourth grade.
Homer uses his medical insurance to buy Dimoxinil, a miracle hair-growth formula. After growing luxurious locks, he's given a promotion which allows him to hire a secretary named Karl and makes grand promises to his family at home.
The Simpson kids hide in the family treehouse and tell each other spooky stories. The first regards haunted houses, the second introduces Kang and Kodos for the first time in an alien abduction, and the third is a Simpson-adapted retelling of The Raven.
Bart catches a three-eyed fish in a river downstream of the Nuclear Power Plant. This causes the plant to become inspected, and in order to prevent it from being shut down, Mr. Burns decides to run for governor. After a hard campaign which sees Burns rise from being universally despised to running neck and neck with popular incumbent Mary Bailey, it is decided that Burns will have dinner with a random employee the night before the election. Homer is chosen, much to Marge's chagrin.
Homer fires up the crowd at a Springfield Isotopes baseball game and is chosen to be the team's new mascot. He immediately becomes a popular attraction and the Isotopes start a winning streak. As a result, Homer is promoted to a team in Capital City, the Capital City Capitals.
Bart and Todd Flanders decide to enter a miniature golf tournament. Homer becomes confident that Bart will win and makes a bet with Ned that the father of the boy that does not win will have to mow their neighbors lawn in their wife's Sunday dress.
Lisa makes a table centerpiece for the Thanksgiving dinner, which Bart accidentally destroys. After he is sent to his room by his parents, Bart angrily runs away from home and experiences a very different kind of Thanksgiving holiday.
The Simpsons go to a Monster truck rally that features famous daredevil Lance Murdock. Bart immediately becomes enamored and decides that he wants to become a daredevil as well. His first stunt ends in injury, but to gain the respect of his friends, he promises a far more impressive feat to them: to jump the Springfield Gorge.
Maggie attacks Homer with a mallet after seeing it on Itchy & Scratchy. Marge begins a protest outside the production offices, demanding the show be retooled to prevent further violence.
After Mr. Burns hits Bart with his car, ambulance-chasing attorney Lionel Hutz persuades Homer and Marge to sue for a million dollars.
After eating poisonous blowfish at a sushi restaurant, Homer decides to live life to the fullest in the 24 hours he has left to live.
When the TV breaks, Marge and Homer entertain the kids with the story of how they first met.
Homer becomes the most popular guy in town when he gets an illegal cable hook-up, but Lisa fears he will go to hell for violating the Eighth Commandment.
