Terror of the Zygons (3)
- Runtime
- 25m
- Air Date
- Aired Sep 13, 1975
The Doctor and the Brigadier begin to realise who the Zygon imposters among them are while Sarah Jane discovers a secret tunnel to the underwater ship.
Terror of the Zygons (3)
The Doctor and the Brigadier begin to realise who the Zygon imposters among them are while Sarah Jane discovers a secret tunnel to the underwater ship.