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The Loch Ness Monster may be the world’s most famous unidentified species. Is it simply a legend, or could it be much more? To find out, we’ll compare decades of encounters across Europe, and use modern science to create a brand-new profile of the beast. Then we’ll enter the depths of the loch for a potential history-making encounter.

The Loch Ness Monster could be a legend, but it could be so much more. There are decades of encounters across Europe where modern science is used to create a brand-new profile of the beast.

The Lost Colony of Roanoke is one of the greatest mysteries in the history of America. 400 years ago, 117 English colonists vanished from their new settlement without a trace. We hunt for clues where the colony once stood, then conduct brand-new DNA testing, to determine once and for all if there were any survivors.

We're on the hunt for two of the most famed and valuable treasures from the Bible - King Solomon's Mines, and the Ark of the Covenant. Do they exist? Can they still be found? Or... have they already been discovered?

The Bermuda Triangle has terrified and perplexed travelers, explorers and scientists for centuries; a look if this area actually holds some special destructive power; to find out, the team enters the Triangle by sea and by air.

In their quest for world domination, Nazi Germany amassed what might be the largest collection of stolen wealth and technology ever acquired. Much of this has been recovered, but not all. What became of these Nazi secrets? We’ll hunt for an incredible stockpile of lost gold, a lost weapon that could have changed the outcome of the war, and one treasure so valuable, it’s been called the missing 8th wonder of the world.

In a hunt for eyewitnesses to large-scale otherworldly encounters, the team pores through declassified government data on UFOs in airspace, and test a brand new theory which may decipher an alien message that has already been received.

To find out when the world will end, researchers search for answers in two ancient civilizations that mysteriously vanished, and explore the final doomsday prophecy of the famed Nostradamus.