4 Ups & 3 Downs From Doctor Who Series 12 - Spyfall Part 2
3. The Whoniverse Door Is Opening Wider
Spyfall Part 1 got its foot in the wider Whoniverse door after both UNIT and Torchwood were name dropped. Part 2 takes this much further by going straight for the big guns, Gallifrey. After The Master suggested going home to see the carnage he saw, The Doctor takes his word and pops home, only to find exactly what The Master was describing. He later reveals that he himself did this, setting a chain of events in motion- which we will get to momentarily.
The door has been kicked down. The floodgates have opened. The Universe we have been living in for the past 57 years has finally made its way into Chibnall's era of Who. Friends, enemies, locations, even Doctors could re-appear over the course of the coming series and future series to come. It's the confirmation we sorely needed that the rest of the Universe was out there, and some of it was unfortunately on fire.