Narrated and hosted by Laurence Fishburne, History's Greatest Mysteries sheds new light on some of the most historically important mysteries of recent times: What was the real reason for the sinking of RMS Titanic? What happened to D.B. Cooper? Did John Wilkes Boot survive, following his assassination of Abraham Lincoln? And whatever happened to Sir Ernest Shackleton's famous ship, Endurance, after it was abandoned to the ice of Antarctica?—Sky History Channel