PrimeWire

You can now watch the entire Secrets of the London Underground Season 1 Episode 6 movie online in high-definition quality, complete with English subtitles for a better viewing experience. Best of all, there’s no need to download anything—simply stream it directly from your device anytime, anywhere.

Tim and Siddy are deep beneath Clapham Common; in fact, they're so deep, the Northern line is running above their heads. This is Clapham South deep level shelter, an enormous, purpose-built air raid shelter. During the Second World War, as rockets landed on the streets above, thousands of people could sleep down here in more than a mile of tunnels - all built by London Transport in the same way they dug tube tunnels.