The "Cybermen" were never my favourite enemy of the "Doctor" - they were OK in the monochrome days with William Hartnell but I didn't really rate them later on. Anyway, this time we see Tom Baker, "Sarah Jane" (Elisabeth Sladen) and "Harry" (Ian Marter) back on the "Nerva Beacon" only discover that the TARDIS has got the timeline wrong again and they soon become aware that their tin-foiled adversaries are back and they are bent on destruction. Not just of humanity, this time, though - they also have their eyes on the planet of "Voga". These are a largely peaceable population who live in the…