5 episodes
First episode: E1
Underworld
Embark on a journey deep into the unknown 95% of our planet revealing extraordinary caves with 3D laser-scanning technology.
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Quick answers about this series, release status, and episode totals.
When did Underworld first air?
Underworld first aired on December 29, 2021.
How many seasons and episodes does Underworld have?
Underworld currently has 1 season and 5 episodes.
When is the next episode of Underworld?
Underworld is ended, and no upcoming episode is currently scheduled.