Photo credit: http://www.fanpop.com/spots/doctor-who/images/32012437/title/power-three-poster-photo
The 4th episode of the new series of Doctor Who is on Saturday 22 September at 7.30pm on BBC1.
Cut and pasted from the Radio Times:
Earth is invaded by millions of sinister-looking black cubes - but what is their purpose and who sent them? To find out the Doctor is forced to play a waiting game, so moves in with Amy and Rory, but soon drives them up the wall.
Follow the links to the Radio Times features on this episode:
This is the trailer: