Brad Meltzer enlists America's help to find lost and stolen historical artifacts, which are going missing from museums and public collections at an alarming rate.

Could a popular virtual smartphone game actually be part of a CIA surveillance conspiracy? Plus, a look at the terrifying future of weaponised micro-drones, and tracking down the original NSA whistleblower who inspired Edward Snowden.

Rob, Matthew and John Owen take their pursuit of Bigfoot to the Midwest, specifically the backwoods of Oklahoma where locals refer to the mythical creature by another name - the Wood Ape.

Recent archaeological discoveries reveal just what life on Earth looked like in the remote past, but how could various hominid species have developed separately around the globe? Is mankind the result of an extraterrestrial experiment?

From the riddles of the Sphinx to mummification and the pyramids, Egypt has seen some of the highest-profile archaeological finds in history. But with so many contenders, which secret has had the biggest impact on our view of Ancient Egypt?

Battleships powered by bulls! Ancient man was far more advanced than the history books suggest.

What might happen if the first manned mission to Mars crashes hundreds of miles from the rocket that would take them back home? See what the astronauts would have to do to survive dust storms and space radiation, while gathering vital resources.

The greatest monuments of the world show more than wealth - they show power. From the secrets of Stonehenge to the jaw dropping temple of Karnak, which of these archaeological sites will be crowned the most jaw-dropping monument of the ancient world?

Brad Meltzer enlists America's help to find lost and stolen historical artifacts, which are going missing from museums and public collections at an alarming rate.

Could a popular virtual smartphone game actually be part of a CIA surveillance conspiracy? Plus, a look at the terrifying future of weaponised micro-drones, and tracking down the original NSA whistleblower who inspired Edward Snowden.

Rob, Matthew and John Owen take their pursuit of Bigfoot to the Midwest, specifically the backwoods of Oklahoma where locals refer to the mythical creature by another name - the Wood Ape.

Recent archaeological discoveries reveal just what life on Earth looked like in the remote past, but how could various hominid species have developed separately around the globe? Is mankind the result of an extraterrestrial experiment?

From the riddles of the Sphinx to mummification and the pyramids, Egypt has seen some of the highest-profile archaeological finds in history. But with so many contenders, which secret has had the biggest impact on our view of Ancient Egypt?

Battleships powered by bulls! Ancient man was far more advanced than the history books suggest.

What might happen if the first manned mission to Mars crashes hundreds of miles from the rocket that would take them back home? See what the astronauts would have to do to survive dust storms and space radiation, while gathering vital resources.

The great empires of the ancient world were created through war, and the most defining battles were fought through siege warfare. From the legendary battle of Troy to the fall of Rome, which siege will top our list for being the most devastating?

Brad Meltzer enlists America's help to find lost historical artifacts, which are going missing from museums and public collections at an alarming rate. Including historic moon tapes that hold the clearest footage from the Apollo 11 moon landing.

A mysterious email leads to what could be a huge underwater UFO base off the California coast. An investigation of new activity at Area 51 takes a dangerous turn. Plus, could an alien satellite be orbiting the Earth right now?

After eight incredible weekends, Rob and the boys reflect on the adventure of a lifetime. From the paranormal to the extraterrestrial, this journey has been as much a father and son bonding experience as it has been an investigation into the unknown.

Rob, Matthew and John Owen travel up to the Redwood Forest and visit the Hoopa Indian Reservation - a hotspot for Sasquatch sightings - with legendary Bigfoot hunter, Matt Moneymaker.

Exploring the pervasive concept of the 'Cosmic Egg', in which the universe or some other primordial being comes into existence by the hatching of an egg. Similar ideas occur in the creation myths of many cultures.

Nazi loot. Roman coins. Viking artefacts. Spanish gold. These are just some of the priceless treasures that regularly pass through the hands of the worlds most prolific yet completely unknown treasure hunters, Hamilton White and Carl Cookson.

Ross prepares to explore the wreck of a sunken steam-age ship, the Iona II. The ship went down with a mystery cargo on board. Determined to solve the mystery, Ross meets with a maritime historian who has uncovered the Iona IIs shocking purpose.

Since the dawn of civilisation, humans have wondered how the universe was created. Religion offers a spiritual answer, but the latest discoveries in physics show evidence that the laws of physics by themselves led to the universe in which we live.

The great empires of the ancient world were created through war, and the most defining battles were fought through siege warfare. From the legendary battle of Troy to the fall of Rome, which siege will top our list for being the most devastating?

Brad Meltzer enlists America's help to find lost historical artifacts, which are going missing from museums and public collections at an alarming rate. Including historic moon tapes that hold the clearest footage from the Apollo 11 moon landing.

A mysterious email leads to what could be a huge underwater UFO base off the California coast. An investigation of new activity at Area 51 takes a dangerous turn. Plus, could an alien satellite be orbiting the Earth right now?

After eight incredible weekends, Rob and the boys reflect on the adventure of a lifetime. From the paranormal to the extraterrestrial, this journey has been as much a father and son bonding experience as it has been an investigation into the unknown.

Rob, Matthew and John Owen travel up to the Redwood Forest and visit the Hoopa Indian Reservation - a hotspot for Sasquatch sightings - with legendary Bigfoot hunter, Matt Moneymaker.

Exploring the pervasive concept of the 'Cosmic Egg', in which the universe or some other primordial being comes into existence by the hatching of an egg. Similar ideas occur in the creation myths of many cultures.

Nazi loot. Roman coins. Viking artefacts. Spanish gold. These are just some of the priceless treasures that regularly pass through the hands of the worlds most prolific yet completely unknown treasure hunters, Hamilton White and Carl Cookson.

Ross prepares to explore the wreck of a sunken steam-age ship, the Iona II. The ship went down with a mystery cargo on board. Determined to solve the mystery, Ross meets with a maritime historian who has uncovered the Iona IIs shocking purpose.

Since the dawn of civilisation, humans have wondered how the universe was created. Religion offers a spiritual answer, but the latest discoveries in physics show evidence that the laws of physics by themselves led to the universe in which we live.

The great empires of the ancient world were created through war, and the most defining battles were fought through siege warfare. From the legendary battle of Troy to the fall of Rome, which siege will top our list for being the most devastating?