
Browse all 8 episodes in this season, including available images, air dates, runtimes, ratings and episode summaries from TMDB.

Episode 1
500 years before the Inca, a band of warriors called the Chachapoya built the greatest stone monument in the Americas. It's three times the size of Egypt's largest pyramid, yet they disappeared without a trace.

Episode 2
The Confederate Army, in an attempt to turn the tide of the Civil War, launched a new and daring weapon--a forty-foot submarine. The H.L. Hunley, armed with a primitive torpedo, destroyed a mighty Union warship, yet its crew never made it home.

Episode 3
The giant stone heads of the Olmec have amazed and mystified archaeologists for more than 150 years.

Episode 4
In a new expedition, Kara Cooney and Charles Ingram look for evidence of the Barbary Pirates at the bottom of the Mediterranean Sea.

Episode 5
Join the search for golden artifacts from Jerusalem's Temple, stolen by the Romans 2,000 years ago.

Episode 6
The search for the treasure of the Temple continues.

Episode 7
For centuries, Europeans heard legends of a mythical city in the heart of the Sahara, the source of endless caravans of gold, but it took 500 years to find.

Episode 8
Travel deep into the heart of the Cambodian jungle to discover a magnificent stone temple that was built on a scale unparalleled in human history.