New discoveries reveal the strange truth inside the mysterious ancient marvels of Mexico's long-lost civilizations, and using the latest scientific methods, experts uncover the location of the lost treasures that are rumored to be inside. This is a mashup of S04E07 "Curse of the Jungle Treasure" (La Venta) and S02E02 "Curse of the Blood Pyramid" (Teotihuacan).

Cutting-edge archaeology is revealing the secrets of the world's most mysterious mummies. As experts make new discoveries that turn up fresh leads to millennia-old cold cases, they might finally understand who these people were and why they suddenly died. This is a mashup of S05E08 "Mystery of the Ice Mummy" and S04E03 "Pompeii's Doomsday Mummies."