Where To Stream Mysteries of the Abandoned Season 9 Episode 14
Hidden Tunnels of Gibraltar
- Aired June 9, 2022
- 60 Min
- Rated 8.6
- Number 31 Of 140 Rated Episodes
A forgotten military fortification connected to a network of secret tunnels are mysteriously hidden within the Rock of Gibraltar; experts investigate and uncover a derelict war-torn complex constructed for a highly classified WWII spy operation.