The BBC Media Centre has released the official synopsis for the fourth episode of the current series of Doctor Who, read on for further details:
LISTEN - by Steven Moffat
When ghosts of past and future crowd into their lives, the Doctor and Clara are thrown into an adventure that takes them to the very end of the universe. What happens when the Doctor is alone? And what scares the grand old man of Time and Space? Listen!
Doctor Who: Listen will broadcast on Saturday 13th September on BBC One and BBC One HD, a time is to be confirmed. Also, the BBC have released a third clip from Into the Dalek, you can watch it below:
Doctor Who: Into the Dalek will broadcast tomorrow at 7:30pm on BBC One and BBC One HD.