Around 360 B.C., the Greek philosopher Plato recorded the legend of Atlantis, the great civilization swallowed by the sea. For centuries, adventurers and archaeologists have searched far and wide for the lost city. But now, an international team of experts has uncovered evidence of an epic catastrophe that wiped out a technically advanced and wealthy Mediterranean civilization 3,500 years ago. Could it be the fabled city of Atlantis? Host Adam Mastrelli details the cataclysmic event that changed history and inspired a myth.