Some of our nations greatest treasures are waiting to be discovered in basement, barns, attics and backyards. In each of the cities visited, locals bring in their artifacts to find out their true value. From those items, three are chosen to investigate further. When the investigation is complete, the owners will learn the item’s true story. At the end of each episode one winner is awarded $10,000 as special recognition for the importance of the artifact in American history, which will be featured in a special exhibit at the National Geographic Museum in Washington, D.C., coming in 2013.