Following recent news of the history-making discovery of Shackleton's ship the Endurance, this 90-minute special will serve as a definitive look at Sir Ernest Shackleton's historic and ill-fated 1914 Antarctic expedition resulting in the loss of his highly revered ship, as well as maritime archaeologists' relentless mission to find this holy grail of shipwrecks.

One of the most chilling aviation mysteries in modern day: a Boeing 777, carrying 239 people, vanishes over the Indian Ocean; nearly a decade later, no one knows what really happened to Malaysia Flight 370.