10 episodes
First episode: E1
Underground Worlds
British documentary series exploring incredible feats of human endeavour underground, revealing what people have built, where they have built it, how and why.
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10 episodes
First episode: E1Show FAQ
Quick answers about this series, release status, and episode totals.
When did Underground Worlds first air?
Underground Worlds first aired on September 25, 2019.
How many seasons and episodes does Underground Worlds have?
Underground Worlds currently has 2 seasons and 20 episodes.
When is the next episode of Underground Worlds?
No official next-episode air date is listed for Underground Worlds right now.