When did Underground Marvels Season 1 Episode 4 air?
Underground Marvels Season 1 Episode 4 aired on November 7, 2019.
Underground Marvels
Historians, engineers, and experts take a look at the underground structures, systems, and phenomena that exist beneath our feet.
Season 1 · Episode 4
The Renegade's Lair
Nov 7, 2019·45m
A strange underground system known as the Black Cave was home to an infamous nobleman on the run from the law; today, experts investigate the secrets he left here to discover new parts of this mysterious network.
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Direct answers for episode-level questions and details.
How long is Underground Marvels Season 1 Episode 4?
This episode runs for approximately 45 minutes.
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