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I'm looking into a series of tunnels
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Secrets of the Underground

I'm looking into a series of tunnels buried deep below the city of Denverthat conspiracy...

I'm looking into a series of tunnels buried deep below the city of Denver
that conspiracy theorists think may be hiding
something very top-secret

Full Transcript

00:00:01.000 --> 00:00:02.088
I'm looking into a series of tunnels
00:00:02.096 --> 00:00:06.064
buried deep below the city of Denver that conspiracy theorists
00:00:06.072 --> 00:00:09.072
think may be hiding something very top-secret.
Duration
10 seconds
Views
18
Timestamp in Movie
00:10:06
Uploaded
Jul 13, 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 • E07 That took place in 2006. - Secrets of the Underground 00:04
That took place in 2006.
S01 • E08 (GPR BEEPING) - Secrets of the Underground 00:05
(GPR BEEPING)
S01 • E01 Could there be a secret staircase from the poker room to the basement? - Secrets of the Underground 00:05
Could there be a secret staircase from the poker room to the...
S01 • E07 In the wake of a blizzard That year, - Secrets of the Underground 00:07
In the wake of a blizzard That year,
S01 • E01 To trace the escape route of Al Capone, - Secrets of the Underground 00:05
To trace the escape route of Al Capone,
S01 • E02 Like a New World Order of powerful elites, - Secrets of the Underground 00:09
Like a New World Order of powerful elites,
S01 • E07 But it turns out, This wasn't just any old crater. - Secrets of the Underground 00:04
But it turns out, This wasn't just any old crater.
S01 • E03 Tim and his assistant Marian set up their ERT gear - Secrets of the Underground 00:09
Tim and his assistant Marian set up their ERT gear
S01 • E08 This is the outside wall of the notorious Spanish Dungeon, - Secrets of the Underground 00:10
This is the outside wall of the notorious Spanish Dungeon,
S01 • E01 And later, I'll deploy another set of gadgets - Secrets of the Underground 00:06
And later, I'll deploy another set of gadgets
S01 • E07 That emit an array Of toxic vapors, - Secrets of the Underground 00:06
That emit an array Of toxic vapors,
S01 • E02 I'll go ahead and eliminate that last one immediately, - Secrets of the Underground 00:09
I'll go ahead and eliminate that last one immediately,
S01 • E03 Tim thinks it could mark the spot - Secrets of the Underground 00:05
Tim thinks it could mark the spot
S01 • E08 For decades, rumours persisted among inmates - Secrets of the Underground 00:07
For decades, rumours persisted among inmates
S01 • E01 Are they the work of ancient humans, the earth itself, - Secrets of the Underground 00:08
Are they the work of ancient humans, the earth itself,
S01 • E02 I'm anxious to apply some state-of-the-art technology - Secrets of the Underground 00:06
I'm anxious to apply some state-of-the-art technology
S01 • E07 Are often undetectable To humans, - Secrets of the Underground 00:07
Are often undetectable To humans,
S01 • E08 And I may have just found new evidence to prove it. - Secrets of the Underground 00:05
And I may have just found new evidence to prove it.
S01 • E08 It looks like a crawlspace, like, right in this region right here. - Secrets of the Underground 00:04
It looks like a crawlspace, like, right in this region right...
S01 • E03 With ERT, - Secrets of the Underground 00:06
With ERT,