This week’s Step Back in Time on the official Doctor Who website is ‘The Monster of Peladon’, a story which starred Jon Pertwee as the Third Doctor. The clip is to celebrate the companion Sarah Jane Smith, who joined the series only a couple of stories before this one.
The current series of The Sarah Jane Adventures comes to a stunning finale next week. It's been quite a ride, crammed with encounters with familiar faces including Androvax and the Alliance of Shades as well as some bizarre, brilliant new aliens including the Shansheeth, the Nightmare Man and the Groske.
Step Back in Time: The Monster of Peladon