Encounters: The Hidden Truth - Season 2

Near-death experiences; formations on Mars that appear to have been constructed; an asteroid found to contain simple forms of life.

A search for Bigfoot; a mass UFO sighting by a group of schoolchildren; a haunted murder site.

Alleged astronaut encounters with UFOs; a grave site reported to contain alien remains; a woman claiming to be Camelot's Guinevere reincarnated; significance attached to the birth of a white buffalo.

Reports of a ghost attack; film of alleged UFOs; a couple who claim to have contacted their murdered son; the continuing quest for the Loch Ness Monster.

People who experience constant low-pitched humming sounds; incidents involving swarming birds and bees; a man who built a house shaped like a spaceship.

Alleged remains of a vampire; a house reportedly haunted by Elvis Presley; stones said to bring bad luck when removed from a volcano site in Hawaii.

Alleged ghosts of schoolchildren who died in the 1930s; psychic hotlines; UFOs and aliens.

Genetic engineering; a California tourist attraction that's said to be haunted; clues to the location of Noah's Ark.