View on: TMDb
The Doctor and Donna join a group of archaeologists at a 51st century library. What caused the library to become abandoned? What are the Nodes? And what links the library to one little girl? All they have is one warning - count the shadows.
Length 43 minutes
Colin Salmon | David Tennant | Steve Pemberton | Catherine Tate | Sarah Niles | Talulah Riley | Josh Dallas | Alex Kingston | O.T. Fagbenle | Mark Dexter | Harry Peacock | Jessika Williams | Eve Newton