Season 02
Season 03
Season 04
Season 06
Season 07
Season 08
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All Episodes - S07
EPS01
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EPS02
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EPS03
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EPS04
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EPS05
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EPS06
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EPS07
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EPS08
An massive, alien-like fortress built into a mountainside is the central node to a network of pipelines that race outwards like tentacles; behind-the-scenes access reveals the secrets of why this strange complex was built and why it was abandoned.
EPS09
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EPS10
An eerie set of buildings in Paris is evidence of unspeakable evil; new discoveries reveal the horrific things that happened here, and why they were abandoned.