Lisa campaigns against genetically modified organisms. Marge teaches abstinence counseling to church teens. Sideshow Bob resurfaces as a scientist.
When the town of Springfield discovers that Ned and Edna have secretly gotten hitched, Marge offers to throw them a congratulatory reception. However, bringing everyone together makes them all realize that no marriage is perfect. Meanwhile, Edna tries to help Ned's children become more socially acceptable by changing some of the rules.moreless
The family are evicted from Springfield and join an off-the-grid community outside of town. But when Homer and Marge try to sneak back into town, they are welcomed with hostility from their former friends and neighbors and begin to appreciate their new and more accepting home in this milestone 500th episode.moreless
The family host a tastemaker party at their home to promote Absolut Krusty, Krusty the Clown's own brand of liquor. Mr. Burns takes notice of the party's success and decides to promote Homer to "Account Man" for the Springfield Nuclear Plant. Robert Marlowe, a seasoned account veteran, takes Homer under his wing and shows Homer what the high life is like in the corner office. Meanwhile, Lisa introduces Bart to a new literary world which sparks his interest in reading classic novels, and when Homer's long hours at the office become the norm, a family vacation with Marge and the kids help him realize that family always comes before work.moreless
Homer befriends Wayne Slater, the nuclear plant's new security guard, who later saves him and friends from Snake's attempted robbery of Moe's tavern. It's learned Wayne was formerly a CIA agent who's had special training and a number of violent flashbacks from his various missions, including an incident when a Ukranian terrorist's wife was killed. When Wayne's heroics at Moe's become big news, the terrorist has Homer kidnapped in order to seek revenge against him.moreless