The short (two part) story โThe Edge Of Destructionโ (the second part to which bears the title โThe Brink of Despairโ) was the first story to be told solely within the TARDIS and involving the Doctor and his regular companions. This was at least partly motivated by budgetary concerns, but in fact the story works nicely in a number of ways: it robs the characters (and thus the viewers) of the safe haven of the TARDIS, by introducing the possibility that a malevolent alien presence could get inside and endanger the lives of the Doctor and his companions; and it forced the characters to deal with lingering mistrust so that their future interactions could move beyond the suspicion engendered by the circumstances of their initial encounter. It also introduced some details that would not be kept in the later series (a reference to the Doctorโs heart in the singular) but also others that would be not only preserved but elaborated (such as the idea that the TARDIS could have some sort of rudimentary intelligence and seek to warn its occupants about problems).
The ability of the character of the Doctor, through a monologue that interprets the odd behavior of the TARDIS, to introduce a sense of impending doom is rather remarkable, if one thinks about it. And of course, another element that is introduced is the tendency of the TARDIS to not function as the Doctor hoped or intended. (A number of the elements mentioned here connect directly to episodes in the more recent series, such as โThe Doctorโs Wifeโ which almost seems like the completion of an arc that began with โThe Edge of Destructionโ in the very first season).
A number of other interesting themes appear in this episode: Susanโs intuition proves superior to the Doctorโs logic in discerning what is really going on. And one conversation between the Doctor and Ian Chesterton explores moral and cultural relativism, among other things:
Ian Chesterton: Doctorโฆ some very strange things are happening. I feel weโre in a very dangerous position. This is no time for personal quarrels.
The Doctor: Meaning?
Ian Chesterton: I think you should go and apologize to Barbara at once.
The Doctor: Iโm afraid we have no time for codes and manners. And I certainly donโt underestimate the dangers, if they exist. But I must have time to think. I must think. Rash action is worse than no action at all, hmm?
Ian Chesterton: I donโt see anything rash in apologizing to Barbara.
[scoffs]
Ian Chesterton: Frankly, Doctor, I find it hard to keep pace with you.
The Doctor: You mean, to keep one jump ahead. That you will never be. You need my knowledge and ability to apply it, and then you need my experience to gain the fullest results.
Ian Chesterton: Results? For good or for evil?
The Doctor: One manโs law is another manโs crime. Sleep on it, Chesterton. Sleep on it.
Here too there is a direct connection with the more recent series. The writers seem to have been taking pains to revive the Doctorโs relative unfamiliarity with human customs and ways of doing things, to great effect as Matt Smith has done a wonderful job of portraying this facet of the Doctorโs alienness. Of late the Doctor cares about human โcodes and mannersโ at least somewhat, but hasnโt fully mastered them.
For a couple of reflections on religion and Doctor Who, see Masonโs discussion of heaven, eternity and a trillion years into future on Doctor Who, and Julie Clawsonโs reflection on the episode โGridlock.โ
The next episode in the first season will be โMarco Poloโ โ the first of the lost episodes.










