In the car world, the annual Piston Cup kicks off again. The red sports car "Lightning" McQueen and "Champion" and "Roadmaster" are the strongest contenders for the championship. As a newcomer, McQueen has extremely high talent, but he is also an arrogant guy. After a tense and fierce confrontation, the three cars crossed the finish line at the same time. Since it is impossible to determine the final winner, the organizing committee decided to hold a death battle in Los Angeles, California one month later with only these three cars participating. Only the final winner can win the Piston Cup. McQueen and his partner, the tow truck driver Uncle McQueen, set off early with full confidence. However, due to long-term fatigue driving, Uncle McQueen accidentally left McQueen halfway. McQueen bumped into things and accidentally came to the forgotten oil car town of Shuishui. In order to avoid the pursuit of the sheriff, McQueen destroyed the road in the town. Under the ruling of Judge Hardison Han and lawyer Porsche Sally, he was forced to stay here to repair the road. After just a few days of getting along, McQueen and the residents of the town gradually got along well, and he also fell in love with the beautiful Sally. However, the road will eventually be completed, and the unfinished game is still waiting for him...