Racecar Lightning McQueen (Owen Wilson) and his tow-truck buddy, Mater (Larry the Cable Guy), have had their share of adventures together but nothing like what they experience when they head overseas for the first-ever World Grand Prix. While Lightning has his eye on the road to the championship, Mater takes a detour to international espionage when he meets British master spy Finn McMissile (Michael Caine) and stunning spy-in-training Holley Shiftwell (Emily Mortimer).