The Edge Of Destruction
8 February 1964
|Written by||David Whittaker|
|Directed by||Richard Martin/Frank Cox|
|Produced by||Verity Lambert|
In a desperate attempt to gain control of the faulty TARDIS guidance system and return the two schoolteachers to 1963, the Doctor decides to expriment with a new combination. There is a violent explosion and the TARDIS blacks out. Susan and Barbara are convinced this is the work of an invisble alien force but Ian rationalises it as a technical fault. The Doctor accuses the two teachers of sabotage; he suspects them of trying to balckmail him into to returning them to earth. Finally even Susan begins to suspect Ian and Barbara. However, they eventually realise that the hault has been caused by the ships on-board defence system, which is now also responsible for the psychological disturbances the crew are experiencing.
The TARDIS has resorted to thses measures because the Fast Return Switch jammed and the TARDIS was on it’s way back to the very beginning of creation.
- The only complete serial in Doctor Who to only feature the regular cast, with no guest actors appearing.
- This episode was watched by 10.4 million viewers on its original transmission.
- Producer Verity Lambert had to write a letter of apology after another department felt it was an unwise decision to show Susan acting out violently with a pair of scissors.