In this high octane series premiere, Jay Leno revisits the golden era of American muscle cars. He explores what started the trend, why they're so valuable today, and if there's a rebirth on the horizon. He visits old pal and muscle car aficionado Tim Allen, hits the drag strip with the first female Pro Stock champion, gets an exclusive look at GM's top secret 1960's concept car "The Pegasus", and drives with NASCAR legend Jimmie Johnson in his souped-up classic Corvette...all to find out why Americans will always love these powerful cars.