In his first on screen apperance, the Doctor lands in Port Babbage in the mid 1800's. He arrives to explore the infamous city. While wandering the streets he notices a group of people circled around a body on the floor. When the death looks accidental and mysterious, the Doctor takes action. He meets a young chap called Greg Hutch who witnessed the death of this man by the hands of an unkown flying "Angel". Greg explains what he saw, and the Doctor suggests they head back the folowwing night to try & see who or what it is. After being chased by it, they run into the Officer who works for the Babbage Athorities. They explain the situation and the Officer agrees this needs to end tonight.