Deep in the Egyptian sand, Zahi make the extraordinary discovery of five intact burials and, just as he thinks things couldn't get any better, he unearths a brutally murdered mummy.

Marty Lagina joins Kevin and his team as they battle the elements and take one final shot at finding 140 million dollars of Confederate gold at the bottom of Lake Michigan.

Evidence continues to mount and patterns emerge, as a group of former U.S. government insiders seek the truth behind UFOs. A shocking new encounter pulls them to another part of the U.S.A. where two more military eyewitnesses risk their career.

What is the meaning behind secret messages found throughout Washington? Did America's Founding Fathers know something about ancient aliens that the general public did not?

From secret prisons to escape tunnels, ancient caves to mines, Bucharest in Romania is ripe with folklore. Discover the history of its secret underworld.

Mining the earth for coal, erecting drilling rigs for oil and natural gas to pipe to our homes, smelting iron ore into buildings of iron and steel - all of these are fundamentals of the modern industrialised world, but they are nothing new.

New technology is allowing us to build underground structures that far surpass any building on earth: South Dakota builds a mile deep structure to study the universe, whilst Mexico City burrows 39 miles underneath the city to save it from drowning.

Suggs and Stephen go in search of relics from the United States' elite 82nd airborne infantry division.

Deep in the Egyptian sand, Zahi make the extraordinary discovery of five intact burials and, just as he thinks things couldn't get any better, he unearths a brutally murdered mummy.

Marty Lagina joins Kevin and his team as they battle the elements and take one final shot at finding 140 million dollars of Confederate gold at the bottom of Lake Michigan.

Evidence continues to mount and patterns emerge, as a group of former U.S. government insiders seek the truth behind UFOs. A shocking new encounter pulls them to another part of the U.S.A. where two more military eyewitnesses risk their career.

What is the meaning behind secret messages found throughout Washington? Did America's Founding Fathers know something about ancient aliens that the general public did not?

From secret prisons to escape tunnels, ancient caves to mines, Bucharest in Romania is ripe with folklore. Discover the history of its secret underworld.

Mining the earth for coal, erecting drilling rigs for oil and natural gas to pipe to our homes, smelting iron ore into buildings of iron and steel - all of these are fundamentals of the modern industrialised world, but they are nothing new.

New technology is allowing us to build underground structures that far surpass any building on earth: South Dakota builds a mile deep structure to study the universe, whilst Mexico City burrows 39 miles underneath the city to save it from drowning.

In WW2, Suffolk was home to 32 airfields that served as stations for US bombers. Suggs and Stephen hunt for relics of the visiting aircraft.

In the storage room of a Victorian museum in the heart of northern Britain lies the mummy of a Peruvian man. The team takes a journey back in time, discovering a secret preserved in the skin that challenges history as we know it.

Suggs and WWII militaria expert Stephen Taylor unearth artefacts from former military sites - starting with a German bomber found in Liverpool.

An encounter in the American heartland indicates a disturbing twist to the UFO phenomenon. The team follows a trail of explosive evidence connecting UFOs to the most destructive weapons in human history.

Why are humans so different from every other species on Earth? Did we evolve from ape or is our intelligence the result of contact with an otherworldly source? Might evidence of alien contact help unlock the mystery of the Creation of Man?

A mudslide that swallows an entire neighbourhood and leaves scientists baffled is investigated. Plus, could engineering be to blame for the deaths of more than 200,000 people in Haiti?

A massive landslide chases a group of construction workers. A tornado tears through an airport and an earthquake threatens a 700-year-old church. Mother Nature continues her killing spree.

The ancient Greeks laid a foundation that supported nearly 3,000 years of European history. How did they build structures including Agamemnon's Tomb and the Parthenon?

In WW2, Suffolk was home to 32 airfields that served as stations for US bombers. Suggs and Stephen hunt for relics of the visiting aircraft.

In the storage room of a Victorian museum in the heart of northern Britain lies the mummy of a Peruvian man. The team takes a journey back in time, discovering a secret preserved in the skin that challenges history as we know it.

Suggs and WWII militaria expert Stephen Taylor unearth artefacts from former military sites - starting with a German bomber found in Liverpool.

An encounter in the American heartland indicates a disturbing twist to the UFO phenomenon. The team follows a trail of explosive evidence connecting UFOs to the most destructive weapons in human history.

Why are humans so different from every other species on Earth? Did we evolve from ape or is our intelligence the result of contact with an otherworldly source? Might evidence of alien contact help unlock the mystery of the Creation of Man?

A mudslide that swallows an entire neighbourhood and leaves scientists baffled is investigated. Plus, could engineering be to blame for the deaths of more than 200,000 people in Haiti?

A massive landslide chases a group of construction workers. A tornado tears through an airport and an earthquake threatens a 700-year-old church. Mother Nature continues her killing spree.

The ancient Greeks laid a foundation that supported nearly 3,000 years of European history. How did they build structures including Agamemnon's Tomb and the Parthenon?

In WW2, Suffolk was home to 32 airfields that served as stations for US bombers. Suggs and Stephen hunt for relics of the visiting aircraft.