The story revolves around the lost planet Shada, on which the Time Lords built a prison for defeated would-be conquerors of the universe. Skagra, one such inmate, needs the help of one of the prison's inmates. He finds nobody knows where Shada is anymore except one aged Time Lord who has retired to Earth, where he is a professor at St. Cedd's College, Cambridge. Luckily for the universe, Skagra's attempt to force the information out of Professor Chronotis coincides with a visit by the professor's old friend, the Doctor. (Filming for this story was never finished, and in this version the story is completed via on-camera narration.)

• DirectorPennant Roberts
• Release6 July 1992
• Genre
  Science Fiction / Adventure
• Duration1h 50m
• Budget?
• Revenue?
• Rate
  

  6.1
  7 reviews
• Productions

  BBC