在世界各地，考古學家都不斷發現一些神秘文物，它們意味著以前也許存在未知的古文明，就像傳說中的城市亞特蘭提斯一樣。越來越多科學家和考古學者相信，數萬年前，現代人類尚未崛起之時，已有運作複雜精細的人類社會，當時的人聚居在大都市裡，可能使用機械化的交通工具、懂得用電和先進的作戰體系。這項假說的擁護者認為，這些文明遺跡都已從地球上抹去了，證據如今被深深掩埋在地球表面之下。這部兩小時的特別節目將會深入探討這些學說，並揭開史前人類的真實面貌。
Around the world, archaeologists are uncovering artifacts that suggest the existence of previously unknown ancient civilizations, much like the mythical city of Atlantis. There is a growing belief among certain scientists and archeologists that tens of thousands of years ago, before the rise of today's man, sophisticated human societies populated large cities that possibly featured mechanized transportation, electricity, and advanced weapons systems. Proponents of this theory believe that these civilizations were wiped off the planet and that the evidence now lies buried miles beneath the Earth's surface. This two-hour special will investigate these beliefs and uncover the truth about people who lived before the beginning of recorded time.
