The BBC Media Centre have issued the synopsis for the second episode of the upcoming ninth series of Doctor Who:
THE WITCH'S FAMILAR - by Steven Moffat
Trapped and alone in a terrifying Dalek city, the Doctor is at the heart of an evil empire; no Sonic, no TARDIS, nobody to help. With his greatest temptation before him, can the Doctor resist? And will there be mercy?
The Witch's Familiar will broadcast on Saturday 19th September at 7:45pm on BBC One and BBC One HD.