Morlocks, chuds, mole people!

[No brains]

Can anyone find the clip from The Simpsons where Homer is bungie jumping with Otto and he sees these monsters?

[Bavarian itP]

for example
https://www.youtube.com/watch?v=aO2t6LO9oLI
2:22

[Gnome Alone]

"There is no escape from the fortress of the moles!"

...

"...except for that."

[No brains]

I was hoping for the whole joke, just to see how The Simspons drew chuds and morlocks.