Alien Skull: In Peru a tiny skeleton resists medical explanation. Is it a missing link in human evolution? Or proof of extra-terrestrial contact? Baltic Sea Anomaly: Wreck detectives ind a huge disc twice the size of a football field on the seabed.

Is there danger in our skies? Across America run-ins between planes and UFO's are reported, sometimes with terrifying and tragic consequences. Is the government covering up the truth behind these encounters?

The Real Exorcist: For the first time, a participant in the real exorcism that inspires the movie The Exorcist reveals his experience. Dying of the Elk: Over 100 elk are found dead. All died in the last 24 hours, but the cause of death is a mystery.

The Flannan Isles Lighthouse Mystery - three lighthouse keepers all disappear. How can three people vanish from a tiny island without a trace? Aleshenka - A Russian Police Captain is shocked to be handed what looks like a mummified alien baby.

The show investigates reported sightings of UFOs near some nuclear-weapon bases.

Ex Deputy Sheriff Chuck Zukowski has been investigating phenomena across Middle America for 25 years. Now he spots a pattern: eye-witness reports of UFOs along the 37th degree parallel, the 3000 mile long line that runs through the heart of the U.S.

Voodoo Zombies: Could modern day claims of zombie existence in Haiti be definitive proof that the myth of zombies is in fact a reality? Life After Death: Patients experience strange and uncharacteristic effects after life saving transplant operations.

A reform school allegedly haunted by shadow people is examined. Also: reports of miracles at Medjugorje.

Lost Giants: In Borjami Valley a team of experts uncover bones they believe belong to a human over 9 feet tall. Bridge of Death: The 19th century gothic Overtoun Bridge in Scotland appears to be haunted, causing dogs to jump to their death.

From dragons to the Loch Ness Monster, mythical beasts have infiltrated many cultures. Is global warming creating conditions to help sea creatures breed?

A dead body shows up out of nowhere.

Bosnian Pyramids - An amateur archaeologist, claims he has uncovered five gaint pyramids in Bosnia. Russian Serpent - For centuries, strange reports of a large, underwater creature have come from people living near the remote Lake Labynkyr in Siberia.