Turn Left (Doctor Who) Turn Left (Doctor Who) "Turn Left" is the eleventh episode of the fourth series of British science fiction television series "Doctor Who". It was written by showrunner Russell T Davies and broadcast on BBC One on 21 June 2008. David Tennant only makes a small contribution to this "Doctor-lite" episode as the Tenth Doctor. The story instead focuses on the Doctor's companion, Donna Noble (Catherine Tate) and her encounters with former companion Rose Tyler (Billie Piper). The episode's narrative focuses on an alternative history where the Doctor dies during the events of the 2006 Christmas special "The Runaway Bride". The
The Lodger (Doctor Who) for Rose Tyler and the TARDIS to catch him up in a few days, and by chance saving the Earth by hiding it from the passing space fleet of a violent alien race. The story was based on ideas that Roberts had since a child to imagine the Doctor experiencing everyday human life and his enjoyment of stories set on Earth rather than in space. Roberts' original comic strip appealed to new executive producer Steven Moffat, who enthused to Roberts that he had "got to do" "The Lodger" as an episode. Roberts had previously had the idea to make the