The reason why I wanted to watch this was because I listened to a 10th Doctor Big Finish story where Ace wound up getting a K9 from the Doctor. Not sure if the Doctor gives K9 to some of his favourite classic-era companions or the ones most likely to get into trouble haha.
Between the robed cult and the small British town obsessed with one specific topic (and acting really conspiratorial about it), I'm getting Hot Fuzz vibes.
Henry Tobias (the editor of the local newspaper) is clearly suspicious, though the woman who's being nice to Sarah Jane implied that Lavinia is dead, so that woman's probably in on the conspiracy too.
Even if it had only lasted for one season, I would have been interested in a series of Sarah Jane and K9 traveling the country and investigating oddities. The theme song is a little grating, though.