Season 1

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  8.4/108 votes

  Portal to the Underworld

  Season 1 Episode 1 - Aired 10/23/2015

  Ghosts from a bizarre plane crash and a mysterious underground city point to powerful forces at work inside the Grand Canyon National Park.

  Director: Unknown

  Writer: Unknown

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  7.7/107 votes

  Flight To Hell

  Season 1 Episode 2 - Aired 10/29/2015

  A tragic plane crash, shocking murders, and mysterious python infestation suggest a dark, evil power at the heart of Florida's Everglades National Park.

  Director: Unknown

  Writer: Unknown

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  8.4/108 votes

  Firestarter

  Season 1 Episode 3 - Aired 10/29/2015

  Black magic, mysterious deaths, and violent fireballs haunt Hawaii's Volcanoes National Park. Many believe this is the work of Pele, the fire goddess.

  Director: Unknown

  Writer: Unknown

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  8.8/106 votes

  Ape Man and Aliens

  Season 1 Episode 4 - Aired 10/29/2015

  A Bigfoot-like creature and UFO sightings suggest that California's Joshua Tree National Park may be ground zero for alien genetic experiments.

  Director: Unknown

  Writer: Unknown

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  6.9/108 votes

  Nazi UFOs

  Season 1 Episode 5 - Aired 11/6/2015

  A secret, underground Nazi base may be the reason for UFO sightings in Montana's Glacier National Park. It may also be the final hideout for Adolf Hitler himself.

  Director: Unknown

  Writer: Unknown

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  8.9/1010 votes

  The Land of the Lost

  Season 1 Episode 6 - Aired 11/13/2015

  Unexplained disappearances, a mysterious death and a Karuk Indian legend may be linked to a race of superhumans in California's Mount Shasta National Forest.

  Director: Unknown

  Writer: Unknown

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  N/A/100 votes

  Chupacabra Island

  Season 1 Episode 7 - Aired 11/13/2015

  The fabled Chupacabra in Puerto Rico's El Yunque National Forest may be linked to UFO sightings in the area and a secret US government research facility.

  Director: Unknown

  Writer: Unknown

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  N/A/100 votes

  Haunted Battleground

  Season 1 Episode 8 - Aired 11/13/2015

  Ghost sightings, a secret government time-travel experiment, and Native American battles suggest that Pennsylvania's Gettysburg National Military Park is a place of unusual and mysterious power.

  Director: Unknown

  Writer: Unknown