No. overall No. in season Title Directed by Written by Original air date Prod. code UK viewers (millions) [7] 7 1 The Last Sontaran Joss Agnew Phil Ford 29 September 2008 (2008-09-29) 2.1 2.2 0.82 1.18 8 2 The Day of the Clown Michael Kerrigan Phil Ford 6 October 2008 (2008-10-06) 13 October 2008 (2008-10-13) 2.3 2.4 1.11 1.28 9 3 Secrets of the Stars Michael Kerrigan Gareth Roberts 20 October 2008 (2008-10-20) 27 October 2008 (2008-10-27) 2.5 2.6 1.42 1.21 10 4 The Mark of the Berserker Joss Agnew Joseph Lidster 3 November 2008 (2008-11-03) 10 November 2008 (2008-11-10) 2.7 2.8 1.43 1.53 11 5 The Temptation of Sarah Jane Smith Graeme Harper Gareth Roberts 17 November 2008 (2008-11-17) 24 November 2008 (2008-11-24) 2.9 2.10 1.18 1.39 12 6 Enemy of the Bane Graeme Harper Phil Ford 1 December 2008 (2008-12-01) 8 December 2008 (2008-12-08) 2.11 2.12 1.36 1.26