When did Underworld Season 1 Episode 5 air?
Underworld Season 1 Episode 5 aired on December 29, 2021.
Underworld
Embark on a journey deep into the unknown 95% of our planet revealing extraordinary caves with 3D laser-scanning technology.
Season 1 · Episode 5
China
Dec 29, 2021
Underworld: China uncovers the secrets of China’s giant caves. A team maps Cloud Ladder Hall showing how its size creates an underground weather system.
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How long is Underworld Season 1 Episode 5?
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