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So when you're retrieving the ROV, don't move any rocks
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Secrets of the Underground

So when you're retrieving the ROV,don't move any rocks, because we don't wantthis to...

So when you're retrieving the ROV,
don't move any rocks, because we don't want
this to settle. Right

Full Transcript

00:00:01.000 --> 00:00:03.092
So when you're retrieving the ROV, don't move any rocks,
00:00:04.000 --> 00:00:06.016
because we don't want this to settle. Right.
Duration
6 seconds
Views
20
Timestamp in Movie
00:33:32
Uploaded
Jul 12, 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 • E02 (RAPID BEEPING) - Secrets of the Underground 00:04
(RAPID BEEPING)
S01 • E01 Could the mysterious Mima Mounds of Washington State - Secrets of the Underground 00:06
Could the mysterious Mima Mounds of Washington State
S01 • E07 Is recognized universally In christianity. - Secrets of the Underground 00:06
Is recognized universally In christianity.
S01 • E03 If this were to collapse and it could just trap your hand or something... - Secrets of the Underground 00:04
If this were to collapse and it could just trap your hand or...
S01 • E08 But the resolution from the ROV's camera - Secrets of the Underground 00:05
But the resolution from the ROV's camera
S01 • E02 The onscreen data spikes, - Secrets of the Underground 00:06
The onscreen data spikes,
S01 • E07 As the name spelled In greek letters - Secrets of the Underground 00:08
As the name spelled In greek letters
S01 • E01 I'm putting that theory to the test - Secrets of the Underground 00:08
I'm putting that theory to the test
S01 • E08 Yeah, I mean, erm...honestly, it is really hard to see. - Secrets of the Underground 00:04
Yeah, I mean, erm...honestly, it is really hard to see.
S01 • E07 An ogham sign for "Lord." - Secrets of the Underground 00:05
An ogham sign for "Lord."
S01 • E02 Could this be the first glimpse of an ancient clue - Secrets of the Underground 00:07
Could this be the first glimpse of an ancient clue
S01 • E01 Look at that! All of a sudden it's forming mounds on the surface. - Secrets of the Underground 00:05
Look at that! All of a sudden it's forming mounds on th...
S01 • E03 It's freezing cold, very cold. - Secrets of the Underground 00:04
It's freezing cold, very cold.
S01 • E07 Vance thinks It's highly unlikely, - Secrets of the Underground 00:06
Vance thinks It's highly unlikely,
S01 • E01 Right down here, you can see what looks exactly like the Mima Mounds, - Secrets of the Underground 00:08
Right down here, you can see what looks exactly like the Mim...
S01 • E03 The ROV's umbilical leads me toward the trapped sub... - Secrets of the Underground 00:05
The ROV's umbilical leads me toward the trapped sub...
S01 • E08 We're just going down, looking and taking pictures. OK. - Secrets of the Underground 00:04
We're just going down, looking and taking pictures. OK.
S01 • E02 I'm using ground penetrating radar - Secrets of the Underground 00:06
I'm using ground penetrating radar
S01 • E08 Mark and Hank have agreed to allow just one dive to the site. - Secrets of the Underground 00:05
Mark and Hank have agreed to allow just one dive to the site...
S01 • E07 In connecticut 1,500 years ago, - Secrets of the Underground 00:06
In connecticut 1,500 years ago,