Doctor Who: The Time of Angels - Next Time Trailer

Saturday 24th April, 6.20pm on BBC One
"Don't blink the Weeping Angels return in the fourth episode of Doctor Who, which is written by Steven Moffat. The Doctor, played by Matt Smith, is recruited by Father Octavian to track the last of the Angels through the terrifying Maze Of The Dead. Meanwhile, the mysterious River Song re-enters the Doctor's life but can he trust her?