閃電麥坤在一場比賽中意外翻車，導致車身零件損壞，讓他不得不暫時退隱一陣子。但好勝心強的他，有辦法在下一屆比賽開始前成功復出，拿下冠軍嗎？

Blindsided by a new generation of blazing-fast racers, the legendary Lightning McQueen is suddenly pushed out of the sport he loves. To get back in the game, he will need the help of an eager young race technician with her own plan to win, inspiration from the late Fabulous Hudson Hornet, and a few unexpected turns. Proving that #95 isn't through yet will test the heart of a champion on Piston Cup Racing's biggest stage!