Galaxy 4
The basic point of 'Galaxy 4' is essentially that one should never judge on appearances. This is not an uncommon message in fiction, but 'Galaxy 4' manages to take this basic premise and from it make an effective scenario, for a splendid four-parter that never outstays its welcome.
Having never seen 'Galaxy 4' intact or the Loose Cannon recon, my assessment of the story is based on the audio soundtrack and the single surviving clip from episode two. And it's really rather good, with two distinct alien races, a simple but effective plot, and an engaging script. The Drahvins at first glance suffer from Xeron syndrome – they are depicted as alien by their eyebrows alone, and are initially fairly boring. Maaga raises them out of such low opinions however. Since all of the other Drahvins are (intentionally) fairly unintelligent cloned soldiers, they get few lines and are depicted as being stupid. Maaga however, is not; she is calculating, intelligent, ruthless, and sadistic, and shines as Doctor Who's first female villain (not counting the scheming Poppaea). Her unpleasant personality makes her interesting from the start, coming to the fore even when she is initially trying to convince the Doctor and his companions that the Rills are the villains – her description of them as crawling monsters is delivered with utter revulsion, suggesting that their appearance alone is enough to earn them her contempt and loathing, and she is eager to see them dead, as witnessed during the exchange in which the Doctor suggests that the Drahvins try and form an alliance with the Rills so that they might all escape from the doomed planet.
These little hints as to her personality are immediately enough to make her seem unsympathetic, even when at this stage we have no other reason to doubt that the Rills are the villains. In addition to her barely-restrained bloodlust, the Doctor, Steven and Vicki are led to distrust by the obvious fear that she instills in her crew, and her paranoia – she is very insistent when she demands that Vicki remain on the Drahvin ship as a hostage whilst the Doctor and Steven return to the TARDIS to consult the Doctor's instruments and her entire attitude implies a threat. As the story progresses, her civilized faзade slips further and further – in episode two, on learning that the planet will explode even sooner than she believed, she is belligerent even whilst still attempting to enlist the Doctor's aid of his own volition – until by the end she gets one of the most chilling speeches of any Doctor Who villain as she gleefully tells her near-mindless lackeys that she can delight in imagining the deaths of those left on the planet when it explodes, even if she cannot actually watch them die. Furthermore, on learning that in fact the Drahvins attacked the Rill ship first, the viewer realises the full significance of her early revulsion towards them; when their ships met in space, she had not yet seen what the Rills looked like, but attacked them anyway – like the Daleks, it is implied that anything different to herself is automatically the enemy. It is fitting then that this especially foul villain does not suffer a last minute defeat, but sees her chances of revenge and escape disintegrating from the end of episode three; after Steven is rescued from the Drahvin airlock in which Maaga sadistically tries to subject him to a lingering death, her attempts to take the Rill ship and then the TARDIS are increasingly desperate. Ultimately, against the alliance of Rills and TARDIS crew, she stands no chance, and whether she seethes from behind the rocks or frantically races the Doctor and friends to the TARDIS, she seems impotent and dies frustrated as the her enemies escape and the planet explodes. In addition to all this, we have other interesting tidbits of information about the Drahvins, as Maaga gives us a glimpse of life on Drahva – a few males are kept for breeding and the rest are killed, whilst an underclass of clones perform functional tasks. The clones are clearly little more than slaves; they receive none of the privilege of "real" Drahvins, and are fed basic rations whilst their betters dine in luxury. Even the soldiers on board Maaga's ship have inferior weapons, despite being bred to kill, with only Maaga's gun allegedly able to damage the Chumblies.
On the other hand, we have the Rills, who are also well portrayed. Despite their monstrous appearance (preserved for posterity only in a couple of photographs, sadly), they are thinkers and learners, seeking only to explore. They are portrayed as a noble race, keenly accepting the Doctor's aid, but adamant that if he cannot save them, he must still save himself and his companions. Their reluctance to reveal their true appearance to the Doctor, Steven and Vicki even when they have befriended them might be construed as a reluctance to incite revulsion (who would like being told they are ugly?) but somehow comes across as genuine concern that their appearance will cause distress. But in spite of their gentle nature, they are prepared to use force to protect themselves and their friends when all other options fail – even after being shot down by the Drahvins, they offer their aid to them, but having realized that they cannot negotiate with the Drahvins, they are willing to deal harshly with them. This makes them far less pathetic than the Thals seemed in 'The Mutants', but their restrained use of such force also contrasts with the vicious Drahvins, making them seem honourable, but assertive. Their appearance and the fact that they breathe ammonia gas and communicate by telepathy goes a long way to making them convincingly alien and on the whole they are one of the better alien races to appear during the Hartnell era. The Chumblies are equally memorable; from the surviving clip, they look unusual enough to be effective, with their beehive shaped bodies and short stature, but manage to avoid seeming overly cute thanks to their impressive arsenal of tools and weapons, established during their attempts to enter the TARDIS. The weird noises they make add to the effect, and whilst they are hardly up there with the Daleks, they are on a par with the Mechanoids.
Hartnell continues to impress as usual, whether he's fiercely defying Maaga or philosophising with the Rills. I've noticed how much he's changed since the series began, in terms of confronting danger; compare his lack of hesitation when rushing towards unknown dangers here, with his obvious fear and desire to avoid conflict in '100,000BC' and 'The Mutants'. True, this change was established during season one, but by this point he almost seems indestructible. By 'The Dalek Invasion of Earth', he was resolutely prepared to stop the Daleks at all costs, but he still seemed very vulnerable on at least two occasions during that story. I'd never noticed this progression before, but watching the series in order really makes it noticeable. In addition, it is interesting that he almost kills the Rills by sabotaging their air converter, and Vicki has to stop him. Whilst he clearly distrusts the Drahvins by this point, he presumably still accepts some of what they have told him, since he tries to destroy the Rills without first hearing their side of the story. This is not his finest moment, but nicely reminds us that for all his good points, he still makes mistakes. Vicki is here relegated to the role of the Doctor's sidekick for the first time since 'The Crusade', and doesn't get much to do, but her befriending of the Rills is an important plot development so she isn't entirely wasted. I also still like the fact that whilst she respects the Doctor, she is more mischievous towards him than Susan was, and is often cheeky, as in the scene when she throws the rock towards the Chumblies. Steven also continues to impress, and is far more confrontational than Ian was. His voice shows almost as much contempt for Maaga in episode three as the Doctor's did earlier, and despite having guns waved at him, he continues to defy her. The bit at the end of episode three when, suffocating, he snarls at her that he'd rather face the Chumblies (which he still believes to be hostile) rather than her any day is one of his greatest moments. In addition, he argues with the Doctor more than Ian did, seemingly less keen to avoid needless squabbles with the old man. Combined with Vicki's cheekiness, this results in a more fiery atmosphere between the Doctor and his companions, which never the less retains a feeling of mutual affection and makes this TARDIS crew distinct from the previous two.
As far as I can tell from the surviving footage, the sets and costumes of 'Galaxy 4' are effective, but really it is difficult to tell. Based on the soundtrack alone however, 'Galaxy 4' is an excellent opening story to season three and a tragic loss to the BBC archives.