Mater is challenged by Bubba the tow truck to a race for the Rust Bucket Stadium, and Lightning McQueen rides in a relay race against Chick Hicks and his racing school student, Stinger.
In "Sarge's Boot Camp," Sarge takes some of the other cars out to the canyon for some 4X4 training. In "Al's Sky-High Adventure", Al Oft, the Lightyear Blimp, helps McQueen and Mater find a lost tractor.
