Seasons & Episodes
Scotland
In this episode, Rob Bell discovers the gruesome secrets hidden in an ancient Scottish cave, a 1950s engineering wonder
London
This week, Rob reveals a mysterious side to Englandʼs capital that very few people ever get to see. Beneath the bustle
North of England
In this episode, Rob explores two natural wonders in the Yorkshire Dales - a mile of caves and one of Britain's deepest
Wales
Rob visits Europe's largest cave system underneath Brecon Beacon national park, the dungeons of Chirk castle and explore
Central England
Under the city of Nottingham Rob explores the largest system of man-made caves in the country, before uncovering a blood
Southern England
Rob explores a mystical cave system that altered Victorian Britain's view of human history before entering a once top-se
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