When Prohibition is revived in Springfield, Homer and Bart supply the town with alcohol.

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.

After winning a motorcycle at a dance contest, Homer becomes part of a motorcycle gang. But when he puts Marge's photo in a biker magazine, a much tougher gang takes her, and he must win her back.

Homer and Marge recall the story of their first kiss at a summer camp when they were children—an event which was not all happy, as Homer (unwillingly) betrayed Marge by standing her up on their second date.

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 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.

Homer recalls a tense family vacation to the Grand Canyon with the Flanders family. At first, the Flanders’ perfection puts the families at odds, but when they get stranded and Ned and Bart go for help, the families finally bond.

Mr. Burns makes a bet with his old friend that nothing can break Homer and Marge apart. But that's where Moe comes in.

When the Simpsons go to a STEM conference, Lisa falls for a crooning jazz pianist named Brendan. Meanwhile, Bart discovers that he has an affinity for chemistry

God and St. Peter contemplate what merits a soul getting into heaven, while citizens of Springfield remember their divine encounters.

When the Boy Explorers become co-ed, Bart and Lisa vow to "out scout" each other at the annual jamboree.

When a plague of insects shuts down Springfield, the Simpsons face their greatest challenge yet… spending time in lockdown with each other.