Sensational! They clearly had a smooth transition from the 3rd to the 4rd Doctor in a quite engaging story about artificial intelligence (with a clear 2001: A Space Odyssey and Terminator influence) and a nazi-allegory with the elitist group who was up for committing omnicide for their ideology. Even feeling tired, I was engaged and even the dated FX couldn't take me out of the story -- and I see that I will like the 4th Doctor, with his quite insane eyes hahaha