The episode will last for 45 minutes and will conclude at 9.15pm. The timeslot, an hour later than the previous episode, is due to the new series of Strictly Come Dancing starting that weekend. It's the same slot that Merlin and Atlantis have previously occupied, and has usually been successful for those shows.
The episode, co-written by Gareth Roberts and Steven Moffat, will air on the same day on BBC America at 9/8C.
The terrifying Skovox Blitzer is ready to destroy all humanity - but worse, and any second now, Danny Pink and the Doctor are going to meet.
When terrifying events threaten Coal Hill school, the Doctor decides to go undercover.[Source: BBC]