Tractor Mac is hard at work in the field one day when his engine starts to make a funny noise.
Lou at the Tractor hospital, but with the help of his animal friends and some other machines who have stopped in for a tune-up, he learns that going to the doctor doesn\'t have to be scary at all..
Tractor Mac is scared that he has to take a trip to Dr.
It doesn\'t sound good, and it doesn\'t feel very good, either.
Tractor Mac is hard at work in the field one day when his engine starts to make a funny noise