Another really good episode from Chibs. This is shaping up to be the best thing he's done for Who since the second series of Torchwood.
The Sontarans weren't retreating back in Liverpool, so that justified Karvinista and Dan taking action. The General in the meantime pulled a Harriet Jones.
I liked that there wasn't much wokery with the guest historical character and it's her jotting down observational notes that helps save the day. I liked that the comic relief Sontaran wound up being murdered, as well as some of the human resistance in Liverpool. The big gripe I had though was there was so little of Liverpool resisting the Sontarans (can't be helped though...covid), Dan had plot armour on the whole time, his parents conveniently turn up, hand him the Wok, and then are never seen or mentioned again.
The fact is the story had a riveting and very pacy string of a, b, and c plots that, while they didn't weave together very tightly, it all had me curious as to what the grander scheme is. Swarm is a deliciously vile villain who has all the answers yet changes every question, and he got to put his hands on Yaz, something all of us have secretly harboured.
And until the show says otherwise, that was definitely Lungbarrow at the start.