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Watch Doctor Who Season 10 Episode 10 Online

  • 7.2/10
  • COUNTRIES: United Kingdom
  • Subtitles: English

A long time ago, the ninth legion of the Roman army vanished into the mists of Scotland. Bill has a theory about what happened, and the Doctor has a time machine. But when they arrive in ancient Aberdeenshire, what they find is a far greater threat than any army. In a cairn, on a hillside, is a doorway leading to the end of the world.