Where to watch Underworld (2021)

Story

This documentary series takes viewers into unexplored underground environments across the planet. Using advanced 3D laser-scanning technology, the show maps and documents cave systems that remain largely unknown to the outside world. Across five episodes, the series reveals the geological wonders and mysteries hidden beneath Earth's surface, showcasing landscapes and formations that few people have ever witnessed.

Why watch

• Explores rarely-seen underground environments using cutting-edge 3D laser technology
• Five-episode documentary format offers focused, in-depth exploration of natural phenomena
• Reveals geological features and cave systems from across the globe

Good for: Viewers interested in nature documentaries and geological exploration; check the content before watching with younger family members as the certificate is unknown.