Flanders' head injury gives him the power to predict doom, Bart and Lisa investigate the murders of Victorian England's most prolific prostitutes, and The Simpsons go on a "fantastic voyage" into Mr. Burns' body to save Maggie from being digested.

* DancePartyEnding
* {{Fanservice}}: Marge in third story. Before, she wonders why her swimsuit has to be so skimpy. After, whent the white blood cells are eating her clothes she is stripped to her undergarments.
* FantasticVoyagePlot: The Simpsons [[AndNowForSomethingCompletelyDifferent tour inside Mr Burns's body]].
* GroinAttack: Invoked at the end of [[spoiler:the FantasticVoyagePlot. Homer tells Mr. Burns that it's a bad idea to defy someone who can kick his balls from the inside]].
* OpiumDen: The Victorian segment excurses into an opium den operated by Moe.
* PoorCommunicationKills: Ned's pleas for Homer to not destroy Springfield.
-->'''Ned:''' Homer, do not press the core destruct button!
-->'''Transmitted into the booth:''' Homer, (Static) press (Static) Destruct button!
-->'''Homer:''' Okay.
-->'''Ned:''' Don't do it! You'll kill everyone!
-->'''Transmitted:''' (Static) Do it! (Static) Kill everyone!
* TakeThat: To Rosie O'Donnell. When Ned Flanders predicted her new musical would close after three performances, he commented he didn't need his power to see that.
* TheDeterminator: Homer persistently tries to press the nuclear destruct button, even as he is being shot.
* TooDumbToLive: Granted most people wouldn't listen to a man talking about seeing the future. However it is taken UpToEleven when Homer doesn't even pause for thought when he thinks Ned is telling him to press the core destruct button. Not even when Ned tells him, even through the static interferance that it will kill everyone.