A string of nested stories tell the tale of why The Simpsons are spending the day at a cavern.

!!Tropes:

* AbsurdlyHighStakesGame: Burns and the Rich Texan waged their whole estates.
* AdventureArchaeologist: Snake used to be one before turning to a criminal life.
* AnotherStoryForAnotherTime: During Homer's confession of the real reason he brought the family to the cavern, he claims he needed money for Bart's operation. At this point, Bart interrupts to ask about the operation, and Homer responds, "That's a story for another day."
* BringMyBrownPants: When Homer first got stuck in the cavern.
-->'''Homer:''' I'm stuck and I have to pee! (''{{beat}}'') Now, I'm just stuck.
* FallenOnHardTimesJob: Mr. Burns working at Moe's. Burns actually considered it as a way to get ''up'' to ''zero''.
* GoThroughMe: Mr. Burns pulls this in order to protect Lisa from a goat.
* PetTheDog: Burns protecting Lisa.
* SomethingCompletelyDifferent: A NestedStories-meets-TheRashomon style story.
* StartOfDarkness: After Moe steals his Mayan coins, Snake decides he'll "take my revenge on society -- by which, I mean convenience stores."
* TwistEnding: It turns out the entire episode is Bart's explanation to Principal Skinner why he didn't have time to study for his geography test.