Finally, Time Ram extracts 'The Creature from the Pit' from the Tom Baker era, and puts it where it always belonged - the Peter Davison era! Written by the under-rated David Fisher, this serial presents us with a fascinating matriarchal society containing plenty of nuance and meaning. And then we add some knob gags. In the process, we ponder the eternal questions: what happens when Nyssa's batteries run down? How does Peter Davison communicate? How many famous people have we stood next to in urinals? It's time to use maths in our continuing efforts to get Helen Mirren to appear in this podcast!