
Their fascinating, hair-raising exploits, excavating abandoned Welsh mines in search of long-buried stories and artefacts, have earned Ioan Lord and Al Tansey – respectively a steam train worker and dairy farmer by day – a 40,000-subscriber YouTube channel, and now a TV special, for which they'll undertake their most ambitious expedition yet.
Here's how to watch "Secrets of the Lost Mines" online from anywhere with a VPN — and potentially for free.