Search
Secrets of the Underground
Secrets of the Underground
RATING6.1 / 10
GENRESReality, Documentary
YEAR2010s / 2017
SEASONS2
LANGUAGEEnglish
COUNTRYUnited States
NOT STREAMING IN U.S.
AVAILABLE IN SINGAPORE
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.
TMBD
IMBD
Try Amazon Prime for Free
Affiliate link
SIMILAR TV-SHOWS
You Can't Turn That Into A House
YOU CAN'T TURN THAT INTO A HOUSE
REALITY / DOCUMENTARY
I Was Prey
I WAS PREY
7.1  —  DOCUMENTARY / REALITY
Strange Evidence
STRANGE EVIDENCE
5.0  —  REALITY / DOCUMENTARY
Texas Metal
TEXAS METAL
7.3  —  REALITY / DOCUMENTARY
The Zoo
THE ZOO
8.3  —  DOCUMENTARY / REALITY
Shot in the Dark
SHOT IN THE DARK
7.8  —  REALITY / DOCUMENTARY
Expedition Unknown: Search for the Afterlife
EXPEDITION UNKNOWN: SEARCH FOR THE AFTERLIFE
REALITY / DOCUMENTARY
America's Hidden History
AMERICA'S HIDDEN HISTORY
REALITY / DOCUMENTARY