Oliver wants to have a simple, romantic Sunday picnic with Lisa. His afternoon for two turns into an irritating crowd when everyone invites themselves and tags along. Joining the couple are Eb, his girlfriend Linda and her accordion, her parents, Sam Drucker, his date and her sousaphone, Hank Kimball, Linda's Grandpa and some old lady he hit on at the gas station. That night, Oliver and Lisa take refuge in the barn when the crowd shows up at their house.

Eb learns that $538 is not enough to build a house on the two acres the Douglases gave to him and Darlene. His schemes to raise a down payment include turning the Douglas farm into a bed and breakfast, a dump, and a trailer camp.