Still not as much action as the first episode, but a lot better than episode 2.
Ava spends some real time with the OCS and we get to know the other nuns a little better. There's some interesting dynamics at play between characters here. Mother Superion is introduced and has little time for Ava, understandably so. Lilith's annoyance at not getting the halo continues to be explored as she does her best to push Ava out. And we get some nicer scenes between Ava and Beatrice, who seems to be the most receptive to their new Warrior Nun not being an actual nun.
There's also some cool stuff explaining the history of the halo, the origins of the Warrior Nun and the OCS. I guess it's exposition, but the way they do it doesn't feel like that, and Ava is just so damn likable that watching her read out of a book for several scenes is genuinely good TV.
JC and his pals only feature briefly here, which definitely improves the pacing. And with Dr Salvius now after Ava too, things are looking pretty interesting.