The Doctor seals the survivors inside the lighthouse but discovers that he may unwittingly have trapped the creature inside with them.
- Drama
- Year 1977
- 23 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
