There seems to be rather a lot of metal around us.
Season Five of Doctor Who ends more or less as it began, with the Second Doctor facing off against the Cybermen. Regular series writer David Whitaker takes his first crack at the metal monstrosities in “The Wheel in Space” (Story Production Code SS), based on a story by Cybermen originator Kit Pedler. They’ve become much more Dalek-like in their intentions, looking to conquer the Earth with a convoluted plan that hinges on capturing Station Three, the titular wheel in space. It’s certainly not the first time the Cybermen have tried to take over Earth, but one wouldn’t know it from this story, as no one on the station seems to have ever encountered a Cyberman previously. Even though, um, the planet Mondas appeared in Earth’s sky back in the 1980s and the Cybermen invaded the Moon in the year 2070, both events prior to the setting of this story.
This narrative amnesia neatly encapsulates the current state of Doctor Who in 1968 (and, one might say, through to the current day). The needs of the story outweigh the needs of the established canon. Yet at the same time, there’s an almost reverent attention to small continuity details pitched solely at dedicated viewers (who would be the ones most likely to recognize, and resent, this amnesia). In the case of “The Wheel in Space,” the Doctor and Jamie are trapped in their predicament by a faulty fluid link; the escaping mercury vapor requires them to abandon the TARDIS and search (eventually) for more mercury. The fluid link connects back to “The Daleks” some four seasons prior when the First Doctor disabled the fluid links to force an ill-advised exploration of the Dalek city to look for mercury—and for adventure.
As has become somewhat standard, the Cybermen are attempting to infiltrate a base that they need to keep intact, so as to use the equipment therein for various nefarious purposes. This time, they have upgraded substantially, with the little Cybermats having energy beams (and the ability to detect brain waves and corrode metals) and the Cybermen themselves equipped with the ability to control human minds. What they haven’t upgraded is their tactical planning apparatus, as the entire scheme to take over Station Three hinges on ionizing a distant star to create a meteorite storm which threatens the station—so far, so good—and then, ah, hiding in a box.