You may remember Karn as the planet where the Paul McGann Doctor regenerated into the War Doctor. Nothing so dramatic happens this time, except that Peter Capaldi finally seems to be turning into the more confident smartass I was hoping for from the beginning. The humor is essential here, because the dialogue is otherwise so ambiguous as to be meaningless – it is, as always, easier for writers to set up mysteries than to resolve them.
See what you think. It’s just under two minutes long.