After yet another Homer and Marge fight, Homer ends up sharing a condo with two homosexuals - who don't exactly think Homer is straight.

Flashbacks follow Marge and Homer back to their dating days, when she was a college student and he was working for his father to support her. Then Marge becomes smitten with a professor, so a sorrowful Homer turns to music--and invents grunge.

When Milhouse's Dad, Kirk, takes exception to a school history lesson that paints one of his ancestors in a bad light, Kirk goes on a crusade to censor and control the school curriculum -- a crusade that Homer co-opts for fun and profit.