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Documentary1 Season
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Watch Underground Britain Season 1

Rob Bell explores Britain's subterranean world, from natural and man-made caverns and their use for smugglers, to the cold war government and everything in between.
  • Scotland
    Episode 145 mins
    In Scotland, Rob Bell discovers the gruesome secrets of an ancient cave.
  • London
    Episode 245 mins
    In London, Rob discovers a labyrinth of tunnels the general public is not meant to know about.
  • North of England
    Episode 345 mins
    Rob explores a mile of caves and one of Britain's deepest potholes.
  • Wales
    Episode 445 mins
    Rob Bell visits Europe's largest cave system underneath Brecon Beacon national park.
  • Central England
    Episode 544 mins
    Rob discovers a long-lost secret when he visits the ruins of Nottingham castle.
  • Southern England
    Episode 645 mins
    Rob explores a mystical cave system that altered Victorian Britain's view of human history.

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