
The investigation of some of the most notorious and mysterious events, in an attempt to unravel all the possible reasons for the disasters.

The first new world colony at Roanoke vanishes; an icy quake rocks Canada, but it's no ordinary earthquake; five vanishing planes start the Bermuda Triangle legend.

Three men vanish from a remote Scottish lighthouse; dozens of mines explode simultaneously during the Vietnam War, for no apparent reason; ten billion snow crabs disappear from the Bering Sea.

An unknown tunnel is discovered beneath a Brazilian farm; a wall of molasses floods Boston; the world's first military submarine vanishes despite a successful mission; was it sunk by the enemy? Or by natural forces?

A giant explosion in Siberia flattens millions of trees; a flood comes out of nowhere to destroy an English town; defeat is snatched from the jaws of victory at Gettysburg, Pa.; poor leadership? Or a quirk of nature?