Ogdenville's economy takes a stumble after tainted barley is discovered in Krusty's veggie burgers and the unemployed of Ogdenville flock to Springfield. When Mayor Quimby closes off the town's borders and enlists private citizens to help patrol them, Homer puts together a border patrol group.
Another "trilogy" episode featuring Simpsonized versions of Macbeth, The Fountainhead, Citizen Kane, and Queen Elizabeth I.
When Springfield Elementary is rated the worst school in the state Marge and Homer rent an apartment in the well-to-do Waverly Hills school district so their kids have a shot at a better education. In order to impress the other students, Bart quickly establishes a new bad boy image and helps boost Lisa's popularity by telling everyone she and pop star Alaska Nebraska are best friends. Meanwhile, Homer enjoys the bachelor lifestyle in the new Waverly Hills apartment.
Homer takes an overbearing approach to parenting Bart and Lisa with disastrous results. Meanwhile Marge takes a liking to the new sauna she discovers in the basement.
Bart resorts to being a good Samaritan to win the affections of a 5th grade girl named Jenny.
Moe develops an internet relationship with a woman named Maya; when the two agree to meet face to face Moe is shocked to discover that Maya is three feet tall.
After Marge and Homer's marriage turns out to be invalid, they decide to re-do their vows. But when Homer goes missing, Bart and Lisa smell something funny and investigate his disappearance.
The Simpsons travel to Ireland so that Grandpa can have one last beer at his beloved O'Flanagan's Pub in Dunkilderry, but it's not the quaint Irish town Grandpa remembers. It's now a gentrified yuppie enclave. Kathy Ireland has a voice cameo as herself.
Lisa infiltrates a convent in order to steal back Maggie who was accidentally taken in by nuns. While in the convent, Lisa uncovers a series of cryptic clues leading to a hidden jewel in Springfield. With help from resident history buffs Principal Skinner and Comic Book Guy, Lisa sets off to find the coveted prize. But Springfield's Freemasons are also hot on the trail of the jewel, and Lisa must race against them to find the jewel and rescue Maggie.
When the adjustable rate on Homer and Marge's mortgage resets at more than they can afford, they must put their home up for sale. Good Samaritan Ned Flanders buys the house and rents it out to them at an affordable rate. But Homer pushes his luck too far when he takes advantage of Ned's generous land lording duties.
