Host Don Wildman gets an up-close look at some of the amazing engineering that helps make the United States run as great as it does. He goes fourteen stories under New York City's Grand Central Station to see how they are creating a brand new system of subway tunnels. Don then climbs 523 feet above San Francisco Bay to check out a new earthquake-proof bridge. Next, he battles class four rapids that are completely man-made in North Carolina. Finally, Don visits a port in California that rips apart and ships out the nation's scrap metal.