This was, in retrospect, a decent start to the Flux, but given how much a waste of a time this six-part story is, The Halloween Apocalypse is ultimately kind of wasted for the fun atmosphere it kicks off with. It is also a bit annoying in how it just doesn't really follow up on anything meaningful from Series 12 here. Dan is fun, and that helps salvage an otherwise waste of our time a bit, but other than that it is really hard to value an episode I had fun with at first knowing that none of these plots points are going anywhere fun.

It's a shame too, because the Swarm has a cool start to him, I feel. It was a welcome moment of colour and energy that felt sorely missing from Jodie's first two years on the show, and at the time it came out I was excited to hopefully get something meaningful to get with Jodie before her time with the show was done. As it stands though, it is just a slightly memorable moment from a terrible time in Doctor Who history.