After buying the Duff Book Of World Records at a library book sale, Homer is inspired to set a record of his own. He rounds up all of Springfield and decides to build the world's tallest human pyramid. Just as the town is ready to accomplish the feat, the pyramid tumbles down and creates a massive rolling ball that finally comes to rest on a truck scale. The Duff representatives see the scale and determine that Springfield is pound for pound the fattest town on earth.
Disgusted by the flatulence, Marge decides to go on a crusade to stop the sugar onslaught on the town. She hires a lawyer and wins a class-action lawsuit against big sugar. The Judge then decrees that sugar be banned from Springfield for life. The town up in arms, Homer becomes a sugar bootlegger and starts smuggling sugar into town. When he brings in his big score, Marge implores him to dump the load, but when she realizes how sugar makes everyone in town happy, she gives up her crusade and the judge rescinds his decree.