This hour-long documentary relates the remarkable history of Mammoth Cave National Park. These are tales of exploration and discovery beginning with pre-historic Native Americans thousands of years ago. Why were these people willing to brave the darkness with only cane reed torches and woven slippers? Why did African-American slave guides stay in the area and continue to lead tours even after they had been set free? These stories and many others are unearthed on this journey into Mammoth Cave National Park.