A school trip for the kids turns to horror when mysterious standing stones come to life.

There's something terrible behind the hype - something Sarah Jane's interested in too ...

Rani and Mr Smith, their well-spoken supercomputer. Add to that Sarah Jane's famous robot dog, K-9, and you've got the dream team to defend our planet across six weeks of dramatic new adventures!

Elizabeth Sladen made Sarah Jane Smith the quintessential Doctor Who companion and her appearances reflected the series' evolution.