Ghost Wars
America's Ancient Ancestors (S04E04)
Don embarks on an adventure beneath the Great Lakes, navigating submerged caves in pursuit of clues about an enigmatic society that might have bee...
S04E04
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Season 4 Episodes
S04E02 - America's Military Underground
Ghost Wars
S04E03 - America's Unmapped Murder Tunnels
Ghost Wars
S04E04 - America's Ancient Ancestors
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S04E05 - The Pirate Queen's Lair
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S04E06 - Templars and The Founding Fathers
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S04E07 - Secrets of the Ancient Metropolis
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