As future Lisa writes her college application essay for Harvard, she recalls past disappointing birthdays that helped shape her.

When Bart goes missing, the town puts together a search party to find him. After most give up hope, Sideshow Bob manipulates Millhouse into revealing where Bart is hiding.

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

Mr. Burns will build a doomsday ark after he believes that the end of the world is near when he sees an old Orson Welles show about Nostradamus. Meanwhile, Professor Frink comes up with a new way of testing everyone in Springfield after Burns wants a test to determine who should go on a spaceship with him.

When Homer is accused of stealing a million-dollar painting, only a detective from the 1970s can clear his name.

Homer and Marge recount the story of their transition from loving their life without kids to being miserable parents.

In an attempt to bring the family together, Marge forces everyone to hand in their electronics and take a trip to a book store.

Everybody is now horrified of clowns after Bart's prank using clown masks, which also causes Krusty to lose his job. He attempts a comeback as a dramatic actor in the play "The Salesman's Bad Day", with Llewellyn Sinclair as his director.

Grampa makes a confession to Homer while on his deathbed. After his recovery, he comes to realize that this issue will not be easy to reconcile.

Homer and Marge follow Moe after the bar closes early and discover him and his father fighting. The Simpsons, after finding out that Moe has been excommunicated from his family for years, attempt to bring them back together.

When the Simpsons' flight to Gainesville gets re-routed to New Orleans, Lisa is forced to face her failures, and regain her confidence as a jazz musician. Meanwhile, Bart is intrigued by the voodoo in Louisiana, and Homer is intrigued by the drinking.

Homer gets Flanders a job at the plant, and he soon learns that no good deed goes unpunished when Flanders starts to insist on carpools and demands more from Homer's work performance. Meanwhile, Marge feels as though their marriage has lost its spark.

The Simpsons go to Denmark so Grampa can benefit from its free health-care system.

Bart falls into a coma after being struck by lightning.

瑪姬和荷馬前往熱帶島嶼，在瑪姬最喜歡的真人秀競賽節目中爭奪一百萬美元，他們的婚姻受到了考驗。

荷馬贏得了與神秘克蘇魯的吃牡蠣比賽，斯普林菲爾德被植物掠奪者佔領，麗莎終於崩潰了，伯恩斯先生開設了一家養老院，並進行了一些侏羅紀升級。

上帝和聖彼得思考靈魂進入天堂的價值，而斯普林菲爾德的公民則記住他們神聖的遭遇。

一家自動駕駛汽車公司來到斯普林菲爾德，挖走了所有發電廠員工及其有趣的工作環境。

巴特冒險了，結果進了醫院。為了掩護自己和荷馬，他說他去了天堂並遇見了耶穌。基督教製片人向辛普森一家提供了一份電影合同，荷馬接受了。但巴特無法承受這種愧疚，在電影結束後向瑪姬坦白了一切。

巴特、尼爾森和米爾豪斯執行頑固惡作劇的任務，在暗網上為莫買了一位郵購新娘。

瑪姬想要一份工作，並偶然成為一名銷售塑膠食品儲存容器的變裝皇后。同時，麗莎試圖以「艾蜜莉」的風格讓世界變得更美好

荷馬找到了自己的使命，成為一名電視重述員，但他嚴厲的評分引發了與庫斯蒂的爭吵。庫斯蒂差點殺死荷馬後，躲進了一個真正的馬戲團，並在那裡找到了幸福。