Image for the TV series Secrets of the Underground

Secrets of the Underground

2017-Present Science

Scientist Rob Nelson investigates the strangest underground locations in the world.

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Secrets of the Underground Cast

Upcoming TV Listings for Secrets of the Underground

Secrets of the Underground Aliens Submerged

Rob examines a set of bizarre markings that suggest a violent clash between prehistoric beasts. In California, he investigates if a strange lake is a home to alien life.

3:00 PM on Discovery Science Canada

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Secrets of the Underground California's Megaquake

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.

10:00 PM on Discovery Science Canada

Select your lineup for TV local listings

Secrets of the Underground California's Megaquake

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.

3:00 AM on Discovery Science Canada

Select your lineup for TV local listings

Secrets of the Underground California's Megaquake

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.

3:00 PM on Discovery Science Canada

Select your lineup for TV local listings