Duration
60 minutes
Series Info
Season 2 Episode 4 of 8
Quick Summary
A looming threat beneath the city of Naples
About This Program
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 broadcasts on Discovery History at 9:00pm, Thursday, 1 January 2026. (Subtitles, repeat)
Channel Numbers:
Sky HD784Sky174Virgin181
Production Details
Runtime60 mins
