When Marge's car falls into a sink hole, she buys the perfect replacement to fit her family of five. But she quickly grows to hate it because, as she tells a shocked Homer, the car would be too small if she wanted to have another baby. Meanwhile Bart and his friends are determined to find out what secret Lisa is keeping when Bart finds her cryptic messages and follows her sneaking off downtown for covert meetings after school.

Homer is shocked to discover that his bowling teammate Dan Gillick, is an accountant for Fat Tony and his mob. When the government finally catches up with Fat Tony and he is forced to serve time on a jury, he names Dan as his temporary replacement. Meanwhile, Lisa adds insects to her vegetarian diet after passing out during a saxophone solo, but starts questioning her decision when bugs start pleading for mercy in her dreams. Blackboard ' I want to secede but don't know which state I'm in'.