Okay ooopps my bad okay lol I got those two confused the one your asking or is were Bo and Luke are being chased by Rosco and stumble onto a race track were unknowingly to the Duke boys, Cale was testing a turbo engine and when the Duke boys find out that its Cale thats testing it and then learning whose after that engine the boys help Cale protect it from landing in the hands of the bad guys. sorry for the mix up cuz!
A sick little boy wants to meet Cale Yarbourough who at that point is coming into Hazzard and runs into the Duke Boys...and trouble...so while there helping out Cale there also reassuring the little boy that he'll get to meet his racing hero and finally in the end they little boy meets his idol.