"Sarah Jane and the gang embark on another exciting new adventure this week as the children's drama series, produced by Russell T Davies, continues.
Astrologer Martin Trueman causes a stir with his uncanny insights and predictions. While Sarah Jane doesn't believe in astrology, she does believe that all is not as it seems with Trueman. Around her, people are falling under Trueman's sinister spell and even Mr Smith doesn't understand what's going on."
The second part can also be viewed on the CBBC Channel after the first part. After the episode, feel free to come back and tell everyone what you thought.