Secrets of the Underground

California's Hidden Doomsday

Name: California's Hidden Doomsday
Released: 2017-03-21T07:00:00.000Z

Documentary Mar 21, 2017 41 min iTunes

Available on Philo, Prime Video, discovery+, Hulu, Sling TV

S1 E6: Rob Nelson heads to California to investigate a network for major fault lines that could set off an unprecedented mega-quake. Then, he explores a mysterious sinkhole that some believe is an endless pit to the center of the Earth.

Documentary Mar 21, 2017 41 min iTunes

TV-PG

Information

Released: 2017
Run Time: 41 min
Rated: TV-PG
Region of Origin: United States

Languages

Original Audio: English
Audio: English (United States) (AAC)
Subtitles: English (CC)

Accessibility

: Closed captions (CC) refer to subtitles in the available language with the addition of relevant non-dialogue information.