Lisa discovers that the town of Springfield hasn't collected millions of dollars worth of taxes. As a result, the town starts collecting from most of the evaders and the only remaining debtor is Lurleen Lumpkin (the country singer who tried to seduce Homer on season 3's "Colonel Homer".) As the police search for her, Lurleen stays with the Simpson family, which irritates Marge, who still hasn't forgotten how Lurleen almost stole Homer from her.