New series exploring the most startling disappearances of the modern era. We'll look at what the theories are, at what is known to have happened - and what science can tell us about what really happened.
In 2014, Malaysia Airlines flight MH370 vanished without a trace. Did it crash and if so, why can't the wreckage be found?
New technology reveals lost cities in hostile jungle - could this lead to a discovery of the mythical El Dorado? And, a crystal is found on a shipwreck.
After five planes vanish in the Bermuda Triangle, science points to a strange geological force. And, satellites reveal lost tribes in the Amazon.
The Roanoke colony vanished without a trace, and centuries later, it remains one of history's greatest unsolved mysteries. Can new evidence reveal its fate?
In 1962, three convicts try to escape from Alcatraz prison. Officials believe the men drowned, but a scientific experiment suggests they made it to shore.
In 2009, an Air France flight disappears, but could this tragedy happen again? After a huge area of Siberian forest is destroyed, it's a race to find the culprit.