Air: Sept 6 1986. 4 eps.
This is the first chapter of The Trial of a Time Lord saga. The Doctor is suddenly called by his people and put on trial for interfering in the events of history. The one testifying against him is The Valeyard. The first case is about the time when The Doctor lands on the classified planet of Ravalox. The Doctor and Peri discover some clues on the planet that tie to earth. The local tribe is being threatened by a robot, Drathro, whose batteries are running out. Can The Doctor talk fast to get out of this one, and what will the court find him because of this little incident?