Doctor Who (1963)

S14E17 The Robots of Death (1)

In a mysterious world set in an uncertain era, a colossal mining ship sifts through a sea of mineral-rich sand, extracting precious ores. The small human crew relies on a legion of humanoid robots for assistance. When the Doctor and Leela show up, they stumble upon the shocking murder of one crew member. With no clear culprit in sight, they must unravel the mystery: if the crew is innocent, then who is responsible for the crime?