Title from disc surface and container

What supernatural lives will be revealed when "Underground Portals" explores the 10,000-year-old prehistoric art work discovered in a cave in India. Could the face of Giza's Great Sphinx prove to be older than once thought, and what otherworldly being might it actually represent? History continues its exploration of unexplained events and phenomena in this collection that journeys through the Egyptian pyramids, Central American temples, and Earth's enigmatic caves

Originally aired during the 2014-2015 television season

Narrated by Robert Clotworthy

Rating: TVPG

DVD, 16x9 (1.78:1) widescreen; 5.1 Dolby Digital

English dialogue; Spanish subtitles; English subtitles for the deaf and hard of hearing

Disc 1.

Forbidden caves ; Mysteries of the Sphinx ; Aliens among us ; Genius factor --

Disc 2.

Secrets of the mummies ; Alien resurrections ; Alien messages ; Great flood --

Disc 3.

Aliens and the Civil War ; Hidden pyramids ; Vanishings ; Alien agenda