The Time Lords send the Doctor and Jo on a mission to deliver a sealed message pod to an unknown party aboard a Skybase orbiting the planet Solos in the 30th century. They are caught quickly in a power struggle between the cruel Marshal of Solos and the young Solonian Ky over the future of Solos - a future that hinges on the contents of the message.

• DirectorChristopher Barry
• Release13 May 1972
• Genre
  Science Fiction / Drama
• Duration2h 30m
• Budget?
• Revenue?
• Rate
  

  7.5
  4 reviews
• Productions

  BBC