Bart fails four consecutive history exams and the school psychiatrist recommends that Bart repeat the fourth grade.

When Marge begs Homer to find Selma a husband, he sets her up with Principal Skinner... who falls in love with Patty instead.

A stressed Marge vacations alone, leaving Bart and Lisa with Patty and Selma, and Maggie with Homer--until she leaves in search of Marge.

Bart leads an uprising at Krusty's summer camp after he and Lisa are subjected to a Dickensian sweatshop.

After seeing Aunt Gladys die alone, Aunt Selma wants to get married and have a baby... until she spends a day babysitting Bart and Lisa at Duff Gardens.

After a DUI, Homer swears off beer for a month. Meanwhile, Bart and Lisa's sibling rivalry plays out in the school science fair.

When clean-living Ned Flanders wants to experience a new side of life, Homer takes him to Las Vegas. After a drunken binge, they marry a pair of cocktail waitresses.

A new Canyonero SUV turns timid Marge into an aggressive driver, and her road rage lands her in traffic school. But when a stampede occurs at the zoo, the town looks to Marge to save the day.

Bart and Lisa return home from Kamp Krustier early, interrupting Homer and Marge's romantic encounters; Bart and Lisa confront a source of trauma.