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Then suddenly, without warning, it was decommissioned
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Secrets of the Underground

Then suddenly, without warning,it was decommissioned

Then suddenly, without warning,
it was decommissioned

Full Transcript

00:00:01.000 --> 00:00:04.092
Then suddenly, without warning, it was decommissioned.
Duration
5 seconds
Views
15
Timestamp in Movie
00:08:47
Uploaded
Jul 12, 2025
Season
1
Episode
2
Genres
documentary

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Movie Summary

Using cutting-edge technologies such as ground penetrating radar (GPR), LIDAR (Light Detection and Ranging), and 3-D imaging, scientists research fascinating underworlds of secret tunnel networks, ancient structures, and bizarre g...
S01 • E02 Could Denver be hiding a massive COG site - Secrets of the Underground 00:06
Could Denver be hiding a massive COG site
S01 • E03 This right here is the little section of water that remains of this lake. - Secrets of the Underground 00:06
This right here is the little section of water that remains ...
S01 • E08 The question is, - Secrets of the Underground 00:06
The question is,
S01 • E07 That are associated With volcanic activity. - Secrets of the Underground 00:04
That are associated With volcanic activity.
S01 • E03 To investigate, I'll send an ROV - Secrets of the Underground 00:08
To investigate, I'll send an ROV
S01 • E08 Stefan and I are gonna take some of this high-tech equipment - Secrets of the Underground 00:08
Stefan and I are gonna take some of this high-tech equipment
S01 • E02 With the eyes of airport security now watching my every move, - Secrets of the Underground 00:07
With the eyes of airport security now watching my every move...
S01 • E01 This is a very very thin wall, only about 2" thick. - Secrets of the Underground 00:04
This is a very very thin wall, only about 2" thick.
S01 • E07 For the million-plus residents Of sacramento, fresno, and reno? - Secrets of the Underground 00:07
For the million-plus residents Of sacramento, fresno, and re...
S01 • E08 The prison recreation yard is where subterranean air gaps - Secrets of the Underground 00:08
The prison recreation yard is where subterranean air gaps
S01 • E01 If, in theory, we could get through this wall, - Secrets of the Underground 00:06
If, in theory, we could get through this wall,
S01 • E02 But the airport isn't the only spot in Denver - Secrets of the Underground 00:07
But the airport isn't the only spot in Denver
S01 • E07 When magma moves up From the earth's core, - Secrets of the Underground 00:09
When magma moves up From the earth's core,
S01 • E08 If inmates burrowed underneath it, their trail would have started here. - Secrets of the Underground 00:05
If inmates burrowed underneath it, their trail would have st...
S01 • E01 GPR confirms it. There's empty space behind these two portals. - Secrets of the Underground 00:05
GPR confirms it. There's empty space behind these two p...
S01 • E02 There are rumours of a labyrinth leading to and from - Secrets of the Underground 00:07
There are rumours of a labyrinth leading to and from
S01 • E01 That means that if Capone escaped through these sewer tunnels, - Secrets of the Underground 00:09
That means that if Capone escaped through these sewer tunnel...
S01 • E07 In fact, that build-up Of pressure in the helium. - Secrets of the Underground 00:04
In fact, that build-up Of pressure in the helium.
S01 • E03 I'm exploring a stretch of woods known as Duffy's Cut, - Secrets of the Underground 00:09
I'm exploring a stretch of woods known as Duffy's ...
S01 • E02 Could these also be connected to the theories surrounding the airport? - Secrets of the Underground 00:05
Could these also be connected to the theories surrounding th...