To earn money for Pebbles' college fund, Fred adopts the name Goggles Pisanno and drives Barney's home-built sports car in the Indianrockolis 500 race.

Fred is in the market for a second car and buys one at a local police auction. But he's unaware that the vehicle contains a fortune in stolen gems and that the jewel thieves who hid them have returned to get them back.