This season aired between 24th September 2007 to 19th November 2007. It featured Sarah Jane Smith, Luke Smith, Maria Jackson, Clyde Langer, Mr Smith, K-9 and Kelsey Hooper. There was also an hour long special that kicked off the series on the 1st Janurary 2007. The main enemies/aliens are The Bane, Mrs Wormwood, The Slitheen, The Gorgon, Kudlak, The Trickster, The Graske and The Xylok. The episodes are:
5. Whatever Happened to Sarah Jane?
6. The Lost Boy