Lisa develops a crush on Nelson and tries to change him into a better person. Meanwhile, Homer finds an autodialer and starts a telemarketing scam.

Bart discovers Principal Skinner and Mrs. Krabappel kissing, and it's not long before the whole town knows of their secret affair.

Homer and Bart try to make money by selling used grease. Meanwhile, Lisa organizes a school dance but feels alienated when a new classmate and her friends try to act like adults.

In this Christmas-themed episode, the students of Springfield Elementary are unwittingly used as a focus group to test new toys. The product of their labors, a cuddly doll named Funzo, is a lot more sinister than he appears.

"Reaper Madness" - Death becomes Homer and our hero must learn to reap what he sows (and pull a fast one on the almighty). "Frinkenstein" - Soon to be Nobel-prize winning Professor Frink reanimates his father for some gruesome body parts-swapping. "Stop the World, I Want to Goof Off" - A parody of Clockstoppers, starring Bart and Milhouse.

Marge finds Nelson and acts as a mother figure towards him due to her children's loss of interest in her. Meanwhile, Lisa gets teased about her big butt, and becomes obsessed with her weight.

Homer becomes Springfield's safety guru and before long he's challenging Mayor Quimby for office. Until, that is, there's an embarrassing mishap with his costume.

Marge and Lisa's plans for a mother-daughter Valentine's Day take a turn when Lisa falls head over heels for an intellectual romantic; Bart and Milhouse investigate Springfield Elementary's legends.

Lisa and Homer's bond gets stronger when they start spending real quality time together, and Bart feels neglected. So Marge tries to help Homer balance his attention between the kids.