"All the Thrills of Le Mans, Silverstone, Sebring, Mille Miglia Races!"

The Green Helmet

After suffering a near fatal accident in his last race over the hill, top British race car driver Greg Rafferty, is about to call it quits when he gets a telegram from racing car tire manufacture Joseph Bartell. He wants Greg to test out his latest invention, a heat resistant car tire, in actual racing competition.