The BBC Media Centre have issued the synopsis for the fifth episode of the current series of Doctor Who:
THE GIRL WHO DIED - by Jamie Mathieson & Steven Moffat
Captured by Vikings, the Doctor and Clara must help protect their village from Space Warriors from the future: the Mire. Outnumbered and outgunned, their fate seems inevitable. So why is the Doctor preoccupied with a single Viking girl?
Doctor Who: The Girl Who Died will broadcast on Saturday 17th October at 8:20pm on BBC One and BBC One HD.