Episode Title: Turn Left

Duration: 49 minutes and 27 seconds

Written by: Russell T Davies

Directed by: Graeme Harper

Transmission Date: 21st June 2008

Ratings: 8.1 million

Synopsis: Donna's entire world collapses, but there's no sign of the Doctor, as Russell T Davies's Bafta Award-winning time-travelling drama continues. Instead, she finds help from a mysterious blonde woman – a traveller from a parallel universe. But, as Donna and Rose Tyler combine forces, are they too late to save the whole of creation from the approaching darkness?

Cast List: The Doctor - David Tennant
Donna Noble - Catherine Tate
Rose Tyler - Billie Piper
Wilfred Mott - Bernard Cribbins
Sylvia Noble - Jacqueline King
Mr Colastanto - Joseph Long
Captain Arisa Magambo - Norma Dumezweni
Fortune Teller - Chipo Chung
Mooky Kahari - Marcia Lecky
Veena Brady - Suzann McLean
Alice Coltrane - Natalie Walter
Private Harris - Clive Standen
Jival Chowdry - Bhasker Patel
Oliver Morgenstern - Ben Righton
Spanish Maid - Loraine Velez
Trinity Wells - Lachele Carl
Studio News Reader - Jason Mohammad
Housing Officer - Sanchia McCormack
Soldier Number 1 - Lawrence Stevenson
Soldier Number 2 - Paul Richard Biggin
Man in Pub - Neil Clench
Female Reporter - Catherine York
Woman in Doorway - Terri-Ann Brumby
Tish Jones - Gugu Mbatha-Raw