Bart and his friends tell their parents that they are going to Canada for a grammar competition. They instead use the rented car for a road trip to the 1982 World's Fair at Knoxville, Tennessee. However, the world fair happened 14 years ago and only a wig shop is still there. They all buy wigs and Martin uses the last money they have on a doll of Al Gore. Nelson knocks down the Sunsphere, which destroys their car. They are left being stuck in Knoxville.