Secrets of Great British Castles Season 1 Episode 1
You can now watch the entire Secrets of Great British Castles Season 1 Episode 1 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.
Secrets of Great British Castles: Dan is at Dover Castle, where he descends into an underground lair to learn how a vast network of tunnels has been used to defend both the castle and the country for many centuries.