What on Earth?

Season 3, Episode 12: Curse of the Sea Monster

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A strange mass breaches surface of an ocean near Antarctica, sparking rumors of a mythological sea monster. An area of the US-Mexico border becomes an international mystery. Ancient rock carvings depict weird, unearthly beings.

All Episodes - Season 3

Grand Canyon Treasure
Episode 1
Grand Canyon Treasure
 Mystery in the Outback
Episode 2
Mystery in the Outback
 Riddle in the Ruins
Episode 3
Riddle in the Ruins
 Stonehenge of the Holy Land
Episode 4
Stonehenge of the Holy Land
 Did We Find Flight 370?
Episode 5
Did We Find Flight 370?
 Gateway to Eden
Episode 6
Gateway to Eden
 Dagger of Tutankhamun
Episode 7
Dagger of Tutankhamun
 Raiders of the Holy Lance
Episode 8
Raiders of the Holy Lance
 The Swastika Conspiracy
Episode 9
The Swastika Conspiracy
 Inside El Chapo's Escape
Episode 10
Inside El Chapo's Escape
 Ghost of Zorro
Episode 11
Ghost of Zorro
 Curse of the Sea Monster
Episode 12
Curse of the Sea Monster
 Strange Symbols in the Desert
Episode 13
Strange Symbols in the Desert
 Bloody Secret Of The Lost City
Episode 14
Bloody Secret Of The Lost City
 Lost Empire Of The Amazon
Episode 15
Lost Empire Of The Amazon
 Siberian Hell Pit
Episode 16
Siberian Hell Pit
 Hunt for El Dorado
Episode 17
Hunt for El Dorado
 Mystery of the Mummy Desert
Episode 18
Mystery of the Mummy Desert
 Forbidden Cities of the Maya
Episode 19
Forbidden Cities of the Maya
 The Curse of Merlin
Episode 20
The Curse of Merlin
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