On the edge of a Norwegian fjord, in the present day, The Doctor, Ryan, Graham and Yaz discover a boarded-up cottage and a girl named Hanne in need of their help. What has happened here? What monster lurks in the woods around the cottage – and beyond?
Elenco: Tosin Cole, Bradley Walsh, Jodie Whittaker, Mandip Gill, Billie Piper, Catherine Tate, Alex Kingston, Arthur Darvill, Bernard Cribbins, Camille Coduri, Freema Agyeman, Jenna-Louise Coleman, John Barrowman, John Hurt, John Simm, Karen Gillan, Noel Clarke, Russell Tovey.