Show/Game ShowHDSubtitles
Duration
60 minutes
Series Info
Season 1 Episode 1 of 8

Quick Summary

Rob Nelson investigates subterranean secrets from around the world

About This Program

Rob Nelson investigates subterranean secrets from around the world, beginning with mysterious rocks at the bottom of Lake Michigan known as Underwater Stonehenge

Secrets Underground broadcasts on Discovery Channel HD at 1:00am, Tuesday, 6 January 2026. (Subtitles)

Channel Numbers:
Sky HD717Virgin177

Production Details

Runtime60 mins

Also Showing

Discovery ChannelMon 5 Jan, 21:00
Discovery Channel HDMon 5 Jan, 21:00
Discovery Channel +1Mon 5 Jan, 22:00
Discovery ChannelTue 6 Jan, 01:00
Discovery Channel +1Tue 6 Jan, 02:00

More Episodes

Secrets Underground S1E8
Discovery HistoryToday 21:00
Secrets Underground S2E1
Discovery HistoryMon 29 Dec, 21:00
Secrets Underground S2E2
Discovery HistoryTue 30 Dec, 21:00
Secrets Underground S2E3
Discovery HistoryWed 31 Dec, 21:00
Secrets Underground S2E4
Discovery HistoryThu 1 Jan, 21:00
Secrets Underground S2E5
Discovery HistoryFri 2 Jan, 21:00
Secrets Underground S2E6
Discovery HistoryMon 5 Jan, 21:00
Secrets Underground S2E7
Discovery HistoryTue 6 Jan, 21:00
Secrets Underground S2E8
Discovery HistoryWed 7 Jan, 21:00

Find Out More

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