

Sarah Jane Smith arrives at the home of her Aunt Lavinia in the cozy village of Moreton Harwood, only to find that Lavinia is nowhere to be found and that the Doctor has left her a parting gift in K·9 Mark III. With the help of K·9 and Lavinia's young ward Brendan Richards, Sarah Jane starts investigating her aunt's disappearance. In the process, they discover that Moreton Harwood is home to a coven worshipping the pagan god Hecate and preparing for a human sacrifice...
Acting
Elisabeth Sladen's effortless charm carries every scene.
Practical Effects
K-9 Mark III: remote-controlled robot realness, no CGI.
Writing
Doctor Who veteran Terrance Dicks' wry, efficient script.
Director
John Black
Trivia, insights & behind the scenes
This was meant to launch a K-9 and Company series; the BBC rejected it despite decent ratings, leaving Elisabeth Sladen heartbroken until The Sarah Jane Adventures resurrected her character 26 years later.
The Hecate cult plot accidentally mirrors the real 1980s 'Satanic panic' in Britain, making this unintentionally topical for its era.
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