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Watch Doctor Who Season 5 Episode 8 Online

  • 7.524/10
  • COUNTRIES: Canada,United Kingdom
  • Subtitles: English

In 2020, the most ambitious drilling project in history is under way. Dr Nasreen Chaudry and her team have reached 21 kilometers into the Earth's crust - but something is stirring far below. Amy Pond discovers there's nowhere to run when you can't even trust the ground at your feet.