Secrets Underground

9:00 PM to 10:00 PM

Wednesday 4 June

Doomsday Volcano Mystery

Season 2 Episode 4 of 8

Beneath the densely populated city of Naples lies a looming threat. A super volcano may be on the verge of erupting and causing an apocalyptic catastrophe

Secrets Underground airs on Discovery History at 9:00 PM, Wednesday 4 June. (Subtitles, audio description.)

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