Tooth and Claw

A few minor offences throughout (lots of characters turning up at exactly the right moment) but the ending does a good job of avoiding out-of-nowhereness. It's somewhat odd that I'd be annoyed if the Doctor had built the moonlight-gun-thing, but it's ok cos Prince Albert did it 20 years previously. Not sure where he got the technological knowhow to do that. Still, no real complaints.