The Simpsons' ninth season originally aired between September 1997 and May 1998, beginning on Sunday, September 21, 1997 with "The City of New York vs. Homer Simpson". The showrunner for the ninth production season was Mike Scully. The aired season contained three episodes which were hold-over episodes from season eight, which Bill Oakley and Josh Weinstein ran. It also contained two episodes which were run by David Mirkin, and another two hold-over episodes from season seven which were run by Al Jean and Mike Reiss.
Season nine won three Emmy Awards: "Trash of the Titans" for Primetime Emmy Award for Outstanding Animated Program in 1998, Hank Azaria picked up "Outstanding Voice-Over Performance" for the voice of Apu Nahasapeemapetilon, and Alf Clausen and Ken Keeler picking up the "Outstanding Music and Lyrics" award. Clausen was also nominated for "Outstanding Music Direction" and "Outstanding Music Composition for a Series" for "Treehouse of Horror VIII". Season nine was also nominated for a "Best Network Television Series" award by the Saturn Awards and "Best Sound Editing" for a Golden Reel Award.
Designated driver Barney absconds to Manhattan in Homer's car and leaves it there. But when the family journeys to the Big Apple to retrieve their property, Homer discovers his car has been booted.
Unmasked as an impostor, Principal Skinner flees to Capital City to reclaim his former life as a shiftless good-for-nothing. The people of Springfield gain a newfound appreciation for him and form a plan to bring him back.
After Lisa’s saxophone is destroyed, the Simpsons reminisce about how she originally got the instrument. On the hottest day of the year, Homer must decide whether to buy an air conditioner or replace Lisa’s sax.
In “The Homega Man,” Homer faces a post-apocalyptic Springfield. Next, Bart attempts to become Superfly in "Fly vs. Fly." In “Easy-Bake Coven,” amidst a witch hunt in 1649, Marge and her sisters invent trick-or-treating.
Alarmed by a soccer riot, Homer buys a handgun. His reckless behavior drives Marge and the kids out of the house, and even his new gun club buddies desert him.
When Homer becomes the coach of a peewee football team, he replaces star quarterback Nelson with the less talented Bart. Facing his teammates’ scorn, Bart looks for a way out but finds a better way to show his team spirit.
Trying to escape his arranged marriage, Apu asks Marge to pose as his wife during his mother’s visit. When the ruse fails, Homer makes a last-ditch attempt to intervene, but Apu is smitten with his new bride Manjula.
When a skeleton is unearthed at the site of a future shopping mall, all Springfield is convinced it is the skeleton of an angel – except Lisa.
When Marge gets her real estate license, she learns to put a positive spin on the flaws of the houses she’s selling. But when the Flanders buy the Murder House, she realizes she has to tell the truth.
After accidentally ruining the family’s Christmas tree and presents, Bart buries the evidence and claims a burglar stole everything. When Kent Brockman does a human interest story on the family’s tragic loss, the townspeople shower the family with generosity… until the truth comes out.
Homer rents a Clint Eastwood movie and is dismayed to find it's a musical. Using clips from past episodes, the rest of the family reminds him about the many times he and other members of the family and town have broken into song and dance.
When the carnival comes to town, Homer and Bart wind up working the ring toss. A father-son team of grifters shows them the downside of the “carny code,” but the Simpsons beat them at their own game.
A cult lures in most of Springfield to toil for “The Leader.” After Marge escapes and has the family deprogrammed, Homer exposes the man behind the spaceship.
When Otto drives the school bus off a bridge, the kids wind up on a deserted island, fending for themselves in a “Lord of the Flies” parody. Back in Springfield, Homer takes on Bill Gates.
Krusty bombs at a charity comedy event and feels like a tired old hack. With the Simpsons’ support, Krusty takes his act in a fresh new direction… but in the end, his true nature asserts itself.
Moe goes broke trying to wine and dine a new girlfriend. Desperate for money, he cooks up an insurance scam with Homer.
Lisa struggles with solving a simple puzzle and fears that the "Simpson gene” is suddenly wiping out her intelligence. Homer stages a family reunion in hopes of introducing Lisa to some Simpsons she can respect.
At Marge’s insistence, Bart has a “play date” with Ralph. Bart suddenly sees the upside of this friendship when he discovers Chief Wiggum’s “master key” and goes to explore Springfield’s abandoned prison.
When Homer joins the Naval Reserve, a captain takes a liking to him and leaves him in charge of a nuclear submarine.
Facing an IRS audit, Homer agrees to help the feds bust Mr. Burns for a missing trillion-dollar bill. When Burns makes an anti-government stand, Homer flees with him to Cuba.
Lisa becomes the anchor of a kids’ news program but is upstaged by Bart’s treacly human interest stories. At home, Homer corrupts a helper monkey.
Homer feuds with the Springfield garbage men and decides to run for Sanitation Commissioner. After winning the election with a sleazy campaign, Homer can’t keep the extravagant promises he made to the town.
After Rainier Wolfcastle helps Homer get in shape, Homer accepts a challenge to climb the Murderhorn, the tallest mountain in Springfield.
Bart’s latest stunt thwarts Lisa’s plan to attend a museum exhibit. When she tries to go alone and takes the wrong bus, Homer sets out to find her.
Homer and Marge try to spice up their love life and are caught baring it all in public. Bart and Lisa discover an alternate ending to Casablanca.