Episode Overview
More than 80% of the Earth's oceans remain unexplored, and in many ways, the underwater world is the final frontier. As new technology allows us to explore oceans and deep lakes more than ever before, what will we find? Will we discover profound secrets about the oceans? Underwater ruins that were lost for thousands of years? Or perhaps something even more extraordinary?
Show Information
Season 4 Episodes 22
1.
Mysterious Ancient Ruins
2.
The Mystery of Genius
3.
What Lies Below?
4.
Secrets of Abandoned Places
5.
Acts of God
6.
Serial Killer Creatures
7.
Mysterious Tombs
8.
Uncanny Curses
9.
Superhuman Feats
10.
Mysteries of the Missing Link
11.
Surviving the Impossible
12.
The Search For King Arthur
13.
Wonders of the Ancient World
14.
The Hunt For Jack The Ripper
15.
The Search for Extraterrestrial Life
16.
Real Life Monsters
17.
America's Lost Treasures
18.
The Bermuda Triangle and the Beyond
19.
Secrets of the Founding Fathers
20.
The Weird Wild West
21.
Devastating Disasters
22.
Mysterious Monoliths
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