Thea has become the Fendahl Core and Stahl realises that he is out of his depth as his followers transform into the hideous, snake-like Fendahleen.
- Drama
- Year 1977
- 20 min
The series bids farewell to its Gothic era and lightens its touch with a return to deep space, and the introduction of K-9. But switch the lights off for the first one. On a remote lighthouse, the Doctor, and Leela find themselves at the mercy of a killer!
- Year: 1977
