The Aztec Empire's downfall at the hands of Hernan Cortes was preceded by Emperor Montezuma's covert relocation of immense riches to seven sites in the American Southwest, thereby initiating a 500-year pursuit for the treasure known as "Montezuma's Gold" and the fabled 7 Cities of Gold, valued at over $3 billion.

A perilous quest unfolds as three families decipher ancient hints to uncover ...