This week on Who's Who, we talk about the first companion-less serial in the series, The Deadly Assassin, where The Doctor travels back to Gallifrey to try to hinder the assassination of a leading figure and runs into an old friend.
Show notes and links:
The Deadly Assassin (en.wikipedia.org)
Outpost Gallifrey: Reviews (web.archive.org)
The Deadly Assassin (TV story) (tardis.wikia.com)
Leela (Doctor Who) (en.wikipedia.org)
The Master (Doctor Who) (en.wikipedia.org)