'World Wharf II: The Wharfening (or How Bob Saves/Destroys the Town – Part II)' (Season Four Finale)
"We went for it on this one. It's a two-parter, and it goes back to this idea that Bob — and in some ways, Tina — is the moral center of the town. We tried to thread that needle and do a kind of cliffhanger, to-be-continued episode…not that you have to wait all summer to see the resolution. We fooled around with expanding the world a little bit; we needed a few more villains, and we wanted them to be the way we would do villains, which is to say, hopefully funny and silly but still dangerous. We introduced this brother character, Felix Fischoeder (played by Zach Galifianakis). There's a musical number in each part, and a really dire, really life-threatening story that gets going. We're really interested to see how it all comes out. We went outside of our comfort zone to tell a story across episodes, but it's also got a ton of heart and a ton of music, so hopefully it'll feel comfortable to try on."