A next time trail of my own creation for the first half of the Series 8 finale, Dark Water. One of the central mysteries of this series has been the identity of the 'woman in the shop' who gave Clara the TARDIS phone number, a plot point introduced in the later days of the Matt Smith era.

In making this trailer, I've utilized clips from both Series 7 and 8 to illustrate two possible theories: Clara is either an earlier version of Missy, or Missy chose Clara as her double agent, and made her 'save' the Doctor (in the Name and Time of the Doctor) only to betray him later on by announcing he would never step inside his TARDIS again. Point being, we don't know who Clara Oswald (if she ever existed) is, so once again, it's time to find out.