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Secrets of the Underground
2017-02-14
4.3
en
Reality
Documentary
A search for an underground escape route said to have been used by Al Capone. Also: who or what built earthen mounds in Washington state.
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Status
Ended
Countries
United States of America
Companies
Science Channel
Seasons
Season 1
8 episodes
Season 2
8 episodes
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Secrets of the Underground | NEW SERIES | Premieres Tue Feb 14
Trailer
•
Jan 27, 2017
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