Marge tries to rehabilitate a convict with remarkable artistic talent. Meanwhile, Homer uses a trash can to fix people's spines.

Homer is humiliated when he appears on the news running from a bear that nearly attacks him at the city dump. After Grampa scolds him, he swears to fight the bear himself.

Bart gets sent to juvenile hall after fooling everyone that there was a marriage concerning him. He encounters a dangerous girl there... He flees with Gina, but then the two are caught by Wiggum.

After Shelbyville accuses Springfield of being hicks, Marge convinces the townspeople to fund a Frank Gehry-designed concert hall, which is then converted to a prison when the concert hall goes bankrupt on opening night. Meanwhile, Bart and Lisa investigate Snowball II's recent weight gain.