An Edwardian yacht in deep space races around the planets. There is a double agent in the TARDIS crew. The White Guardian warns the Fifth Doctor of great danger. Turlough must finally choose sides and at the end of the race lies the prize of Enlightenment.

• DirectorFiona Cumming
• Release9 March 1983
• Genre
  Drama / Action
• Duration1h 40m
• Budget?
• Revenue?
• Rate
  

  8.0
  2 reviews
• Productions

  BBC