A team of Smithsonian researchers uncovers a hidden Aztec city in the Grand Canyon, guarded by malevolent spirits and a deadly flying serpent. The daughter of the expedition's leader assembles a rescue team to free her father and colleagues from the clutches of ancient Aztec warriors and their serpent god.
The Lost Treasure of the Grand Canyon
A century ago, the search for a fabled lost city in the Grand Canyon ended in mystery as a group of thrill-seekers vanished without a trace.
