Dr.Who: Woman Who Lived (PER 3)

England, 1651. The Knightmare is a highwayman who is feared in the dark streets of London. With the help of a mysterious assistant, the Knightmare is searching for jewellery from another world — and comes face to face with the Doctor. Who is the highwayman´s companion? Will the Doctor be able to stay away from the gallows and protect the Earth from a terrible enemy?