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
Partners in Crime (Doctor Who) the Doctor's original offer to travel in the TARDIS. The Doctor makes it clear to her that he only wants to be friends and nothing more, and she emphatically agrees. She makes a detour to leave her car keys in a litter bin, telling her mother Sylvia to collect them later. While there, she meets a blonde woman and asks her to help Sylvia find the keys. The woman turns out to be Rose Tyler, who fades from view as she walks away from the area. In the final scene, Donna asks the Doctor to fly by her grandfather, Wilfred.