And so our story comes to an end.
As with the rest of the story, there’s much to enjoy here. There are some wonderful moments of tension, some great character building with the Brig, and some fun moments of the Doctor controlling a Yeti like it was a brainless Spock. Also, there’s a shot of a movie poster for In the Heat of the Night, so that’s pretty great.
The story has a lot to tie up in a short amount of time, and it’s a great testament to the writers that they manage to clear up everything as well as they do, and have it all make at least some sort of sense.
In the end, the Doctor saves the day, as we knew he would, and then he and his friends fly off, and will never encounter the Great Intelligence or a certain Lethbridge-Stewart ever again.