Mail from forty years earlier is discovered, and a letter from Homer Simpson's mother's old boyfriend states that he is Homer's true father. Homer sets out to find his supposed new father, leaving Abe behind.

A child psychiatrist suggests drumming to channel Bart's energy, and the boy proves he's got the beat when he shows some talent on the skins.

Marge reads Homer's carpentry books and becomes very handy at fixing things. Gender bias keeps the townspeople from accepting a female carpenter, so Marge pretends that Homer does the work. Meanwhile, Bart torments Skinner when he learns the principal has an extreme allergy to peanuts.

Marge goes online for the first time and becomes obsessed with a role-playing game that Bart and many of their neighbors are playing. Meanwhile, Lisa develops her own obsession--for soccer--and Homer becomes a referee.

Bart goes from hero to goat on his Little League team after an error in the championship game. Meanwhile, Homer falls asleep on a bed in a department store. When he's awakened, he raves about the mattress and is given a job as a salesman.

In a parody of "24," the school's Counter Truancy Unit tries to stop three sixth-graders planning to disrupt the school bake sale with a stink bomb.

Homer's behavior once again lands him in hot water with Marge and he needs to fathom a way to save his marriage, while a dose of "A Streetcar Named Desire" drives Milhouse to affect a Marlon Brando-esque bad-boy demeanor in an effort to impress Lisa.

Lisa sets out to restore the tarnished reputation of Springfield’s first female inventor. To find her invention, she scours an abandoned asylum and a restaurant that caters to men. Bart joins Lisa at the asylum, stealing one of the homicidal patient’s notebooks, and bragging to the boys at school that he wrote the entries himself. This revelation causes Homer and Marge to believe he is a sociopath, which Bart decides to use to his advantage until things go too far.

Maggie becomes possessed by an ancient demon, Lisa discovers a creepy/perfect version of her family in an alternate universe and Homer cannibalizes himself.

The documentary crime series "Dateline: Springfield" goes in-depth to solve the case of Lisa’s missing college fund.

The Simpsons face various Thanksgiving nightmares, including the first Thanksgiving, an A.I. mishap and a dangerous space mission complicated by a sentient cranberry sauce.

Helen Lovejoy's request for a youth pastor is answered by Bode Wright, a charismatic young preacher from Michigan. When Bode quickly has the Springfield congregation enamored by his easy-going and liberal approach to religion, an outcast and suspicious Reverend Lovejoy decides to look into the newcomer's past.

Lisa makes a shocking college decision, wounding Marge. It leads to a very surprising place.

After Moe breaks their most sacred rule, a secret society of bartenders seeks ultimate vengeance on Homer and his friends.

A musical comes to life in Springfield as Marge stages a revival of her beloved high school show - but her wonderful memories are threatened by the return of a rival from the past.

Things for Ned and Homer go from bad to gosh-darn worse in the stunning conclusion of this 'Simpflix' prestige crime thriller.

Smithers finds true love with a famous fashion designer, but will his new relationship destroy Springfield?

Lisa meets the son of the late musician Bleeding Gums Murphy - and attempts to improve his life.

A surprise from Marge's past has her bonding with Bart and terrifying Homer.

When Ned Flanders falls on hard times, Fat Tony makes him an offer he can't refuse.

After Bart is turned into an NFT, Marge fights though the blockchain to rescue her son. To track down a gruesome serial killer, Lisa turns to a murderer from her past. An outbreak transforms Springfielders into a plague of lazy, beer-loving oafs.

Lisa recounts the story of how Homer was scapegoated for a power outage that plunged Springfield into darkness days before Thanksgiving.