Secrets of the Underground
Season 2
S2 · E1 · Oct 28, 2017
Legend of the Nazi Gold Episode 1
S2 · E2 · Nov 4, 2017
King Solomon's Treasures Episode 2
S2 · E3 · Nov 11, 2017
Tesla's Final Secrets Episode 3
S2 · E4 · Nov 18, 2017
Doomsday Volcano of the Gods Episode 4
S2 · E5 · Nov 25, 2017
Atlantis in America Episode 5
S2 · E6 · Dec 2, 2017
Mystery of the Ice Cave Episode 6
S2 · E7 · Dec 9, 2017
Lost Pirate City Treasure Episode 7
S2 · E8 · Dec 16, 2017
Quest for the Gold Rush Fortune Episode 8
8 episodes in Season 2
Some details come from TheTVDB.
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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Cast
1 person
Total runtime 16h 0m · Episode length 60 min · Type Reality
Show info
Premiered
February 14, 2017
Final episode
December 16, 2017
Status
Ended
Network
Science
Country
United States
Type
Reality
Episode length
60 min
Total runtime
16h 0m
Original language
English
Production
Science Channel
Production
United States
Produced in
Languages
Spoken on screen
English
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Some details come from TheTVDB.