In 2014, Malaysia Airlines flight MH370 vanishes; rescue crews search its last known position but find nothing; the fate of the flight remains a mystery; theories abound but facts are few.
Atlantis is one of the most famous disappearances of all time; after thousands of years, state-of-the-art technology might finally be able to crack this ancient mystery; after nine hikers die in a gruesome cold case, new science provides a hot lead.
A huge cargo ship suddenly vanishes with 27 crew members on board; new evidence suggests the culprit may be a mythical rogue wave; recently discovered evidence could prove the existence of a ghost ship in the Californian desert.
In 1962, three convicts attempt the impossible and escape from Alcatraz prison; officials believe the men drowned, but a new scientific experiment suggests they made it to shore.
New technology reveals lost cities in inhospitable jungle; researchers wonder if the mythical city of El Dorado could be the next discovery; after a crystal is found on a shipwreck, experts believe it could prove how the Vikings discovered America.
The Roanoke colony vanishes without a trace, and centuries later, it remains one of history's greatest unsolved mysteries; but new evidence might at last reveal its fate; after a man is swallowed by earth, experts wonder if a sinkhole is to blame.
In 2009, an Air France flight goes missing, and investigators discover this tragedy could happen again; after a huge area of Siberian forest is destroyed, investigators race to find the culprit; new evidence might solve this century-old mystery.