Doctor Who
The Invisible Enemy, Part Three
Season 15, Episode 7 · Aired 1977-10-15
Synopsis
The medical center mounts a defense against alien forces trying to take the comatose Doctor while clones of Leela and the Doctor go microscopic so they can hunt down the intelligent infection that's in his head.
In the series
This episode is part of Doctor Who (1963–) on BBC.
A time-traveling renegade in a police box — regeneration as infinite franchise life.
Key cast
- William Hartnell as The First Doctor
- Patrick Troughton as The Second Doctor
- Jon Pertwee as The Third Doctor