The kids are getting ready to go back to school. On the first day, Principal Skinner holds an all school Spelling Bee, which Lisa easily wins, allowing her to go to the state spelling finals. If she wins there, she can then go Spellympics. Meanwhile, Homer has been trying Krustyburger's new "Ribwich" and enjoying it immensely. At the state Spelling Bee Lisa wins, but is disappointed with Homer who tells her that "very serious Daddy business" is going to keep him away from her celebration. Homer's daddy business consists of getting more Ribwiches. He is disappointed when the Ribwich is no longer available. Another Ribwich fan (and member of Ribwich Nation) informs Homer that the sandwich is going to be tested in other markets and he shows him the tour schedule. For a moment, Homer considers joining them on their bus tour. For her spelling efforts, Lisa is rewarded with a double-wide locker and she prepares for the Spellympics. At the Spellympics, Lisa makes it to the finals. Homer regrets that he won't be able to attend the finals, as he will be in San Francisco for the last day of the Ribwich. George Plimpton talks to Lisa about getting her to throw the spelling bee so that a more popular competitor can help keep spelling a viable sport. For throwing the bee, Lisa is offered a full scholarship to one of the seven sister's college of her choice. Lisa wrestles with her conscience. In San Francisco, Krusty stops by and tells the crowd they will no longer be making the Ribwich and he tosses them the last one. Homer catches it, and offers are made to him for the last one. He realizes that he's forsaken his daughter's big day for a sandwich and he trades it for a car, which he drives off to Lisa's big event. At the Spellympics, Homer arrives just in time for Lisa to do her final word. With her dad present, she blows the lid off of the rigged contest, but then misspells her word in the process. She loses the contest, but back home in Springfield she is celebrated as "the biggest winner this town has ever had." They even have her likeness carved into the side of a mountain.