Legendary tales depict Caligula as the most notorious emperor in ancient Roman history, and now, new evidence uncovers the truth behind these lurid stories, revealing an astonishing story of murder, intrigue, and dynastic family power.

Deep in the jungles of Mexico, gigantic stone heads carve a hidden path to a Mesoamerican mystery; an intrepid expert, Dr. Janina Ramirez, follows the trail left by long-ago explorers, Matthew and Marion Stirling, to turn up new clues and reveal the secrets of a lost ancient civilization, the Olmecs.