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Like maybe some giant underground cavern or something... Exactly
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Secrets of the Underground

Like maybe some giant undergroundcavern or something... Exactly

Like maybe some giant underground
cavern or something... Exactly

Full Transcript

00:00:01.000 --> 00:00:04.036
Like maybe some giant underground cavern or something... Exactly.
Duration
4 seconds
Views
14
Timestamp in Movie
00:31:57
Uploaded
Jul 13, 2025
Season
1
Episode
3
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 • E08 We've got two propellers in the back, we got a propeller on top, - Secrets of the Underground 00:06
We've got two propellers in the back, we got a propelle...
S01 • E03 ..that's basically acting as a reservoir. Exactly. - Secrets of the Underground 00:05
..that's basically acting as a reservoir. Exactly.
S01 • E01 Some scientists have speculated - Secrets of the Underground 00:12
Some scientists have speculated
S01 • E02 Jamie, stand by. We're pretty close to being able to shoot a beam to you. - Secrets of the Underground 00:06
Jamie, stand by. We're pretty close to being able to sh...
S01 • E08 So a member of Mark's team helps me prep the camera-mounted ROV, - Secrets of the Underground 00:08
So a member of Mark's team helps me prep the camera-mou...
S01 • E03 Apparently, according to my research, - Secrets of the Underground 00:08
Apparently, according to my research,
S01 • E01 In my research, I came across a pretty low-tech experiment - Secrets of the Underground 00:07
In my research, I came across a pretty low-tech experiment
S01 • E08 This one, nicknamed Jake, is fully loaded with three cameras, - Secrets of the Underground 00:09
This one, nicknamed Jake, is fully loaded with three cameras...
S01 • E03 A massive reservoir was recently discovered - Secrets of the Underground 00:06
A massive reservoir was recently discovered
S01 • E03 And there are signs that similar water pockets - Secrets of the Underground 00:07
And there are signs that similar water pockets
S01 • E01 I take this hammer to simulates an earthquake, - Secrets of the Underground 00:13
I take this hammer to simulates an earthquake,
S01 • E08 It can withstand the frigid water temperature of Lake Michigan - Secrets of the Underground 00:08
It can withstand the frigid water temperature of Lake Michig...
S01 • E07 Is really a petroglyph, But if it is, what does it mean? - Secrets of the Underground 00:05
Is really a petroglyph, But if it is, what does it mean?
S01 • E08 All right, looks like we're in a good place, so we're gonna go down. - Secrets of the Underground 00:05
All right, looks like we're in a good place, so we'...
S01 • E03 Could an underground cavern also exist beneath Mountain Lake, - Secrets of the Underground 00:08
Could an underground cavern also exist beneath Mountain Lake...
S01 • E02 All right, we're all done. I'm gonna break down the transit now. - Secrets of the Underground 00:04
All right, we're all done. I'm gonna break down th...
S01 • E01 So let's see how likely it is that these mounds formed this way. - Secrets of the Underground 00:05
So let's see how likely it is that these mounds formed ...
S01 • E02 Now we can start our search for any anomalies inside the mound. - Secrets of the Underground 00:05
Now we can start our search for any anomalies inside the mou...
S01 • E03 I'm hoping the ROV can help answer that question. - Secrets of the Underground 00:04
I'm hoping the ROV can help answer that question.
S01 • E02 We're not allowed to physically dig up the site, - Secrets of the Underground 00:06
We're not allowed to physically dig up the site,