The one where the Cybermen poison the sugar...
After all my deliberating about whether contemporary audiences would recognise that the silver giant was a Cyberman (because they look so different), Polly makes a huge leap herself by stating that what she glimpses so very fleetingly is indeed a Cyberman. The fact that she knows Cybermen to be tall, cloth-faced, flesh-handed men with polythene-like suits - and the creature she sees briefly is quite, quite different - matters not to Polly, or indeed writer Kit Pedler. It doesn't ring true for me that Polly would know it to be a Cyberman, or that the Doctor would believe her so absolutely without a scrap of evidence. By the end of the episode, the Doctor reaffirms his belief that the culprits are Cybermen, but he still hasn't any more evidence than he did at the start. He must trust Polly so implicitly!
Good old Polly gets the most to do in this episode, but that's really not saying much. So far, Kit Pedler hasn't proven himself to be very good at writing solid subplots for the entire main cast. He virtually ignored Polly in The Tenth Planet, and Ben only got as many lines as he did because William Hartnell fell ill. In The Moonbase, Polly at least becomes the Doctor's lab assistant, but Ben is reduced to random exclamations that anybody could say, while Jamie remains semi-conscious in the sick bay spouting on about the phantom piper. I realise that Jamie's role in this story was small due to the fact he wasn't in the original drafts, but his absence from proceedings seems so obvious, and only highlights the fact the production team at the time just didn't know what to do with all of the characters they suddenly found themselves with. In Pedler's case, he just didn't bother!






