Star race car Lightning McQueen and his pal Mater head overseas to compete in the World Grand Prix race. But the road to the championship becomes rocky as Mater gets caught up in an intriguing adventure of his own: international espionage. The famous race car Lightning McQueen and his team are invited to compete in the World Grand Prix race. There, McQueen's best friend Mater, finds himself involved in international espionage, and alongside two professional British spies, attempts to uncover a secret plan led by a mysterious mastermind and his criminal gang, which threatens the lives of all competitors in the tournament.

In this short featuring the characters of the movie Cars, Mater is told the story of a Ghostlight, which causes him to be scared. At night, all around town, Mater the disheveled tow truck is causing havoc, playing tricks, disturbing the peace, and scaring other motor vehicles. At Flo's V-8 café, the local cop car warns Mater about the ghostlight, a legendary orb of blue that haunts these parts. The cop car tells the story and warns one and all that the ghostlight hates the sound of clanking metal. All the cars rush home, leaving only Mater, whistling past the graveyard, alone at his junkyard. Then, a blue light appears; can Mater save himself or is there more to the story?