An all-time classic but interestingly, not one you host, Toby Hadoke, is familiar with in its broadcast form (even though he has watched it more than most stories) : don't worry, it's all explained in the course of this very upbeat jaunt back in time. And by upbeat of course, we mean lethal, scary and violent! Part of the reason for the perkiness amongst the terror is the superb contribution of this edition's guest, uber Doctor Who researcher Richard Bignell, who brings a lot to the table.