This was written by Rona Munro, who wrote "Survival", the last story of the old series. I know they've used a director from the old series - Graeme Harper - and several actors, but I'm reasonably certain that this is the first writer.
The story itself was pretty good, atmospheric and creepy. I'm a sucker for stories where enemies have to come together to fight a greater threat.
I liked the "Death by Scotland" line.
Nardole's explanation of the Mary Celeste contradicts "The Chase".