Experts may have finally identified the strange creatures that besieged a Kentucky farmhouse, new evidence could explain the largest mass UFO sighting in US history and investigators seek answers in Chicago's O'Hare International Airport sighting.

Experts investigate the mystery of the Bermuda Triangle, researchers seek answers about strange sightings in Massachusetts and a crazed murderer may be responsible for a string of unexplained disappearances in Bennington, Vermont.