- 1Treehouse of Horror XIII
- 2How I Spent My Strummer Vacation
- 3Bart vs. Lisa vs. the Third Grade
- 4Large Marge
- 5Helter Shelter
- 6The Great Louse Detective
- 7Special Edna
- 8The Dad Who Knew Too Little
- 9The Strong Arms of the Ma
- 10Pray Anything
- 11Barting Over
- 12I'm Spelling as Fast as I Can
- 13A Star Is Born Again
- 14Mr. Spritz Goes to Washington
- 15C. E. D'oh
- 16'Scuse Me While I Miss the Sky
- 17Three Gays of the Condo
- 18Dude, Where's My Ranch?
- 19Old Yeller-Belly
- 20Brake My Wife, Please
- 21The Bart of War
- 22Moe Baby Blues
Homer disappoints Lisa on her birthday when he gives her a thoughtless present. He realizes that he knows little about her and decides to hire private detective Dexter Colt to spy on her. Colt compiles a report, the information from which helps Homer bond with his daughter. However, Colt soon demands to be paid $1000, which Homer refuses. In retaliation, Colt vandalises an animal research lab and steals all the animals, leaving behind several clues that implicate Lisa. Homer and Lisa go on the run as fugitives and end up at a circus, where they meet Colt. He tries to kill Homer, but Lisa saves him. Later, Colt is arrested and Lisa exonerated. She finally receives the present she wanted from Homer.