Mysterious forces are at work in 1930s Tibet. The once gentle Yeti have turned savage and besieged a Buddhist monastery. The Second Doctor, Jamie and Victoria arrive expecting a friendly welcome from the abbot, but soon become ensnared in the plans of the extradimensional being known as the Great Intelligence.
The Doctor
Jamie McCrimmon
Victoria Waterfield
Professor Travers
Padmasambhava
Songsten
Khrisong
Rinchen
Thonmi
Sapan
Ralpachan
Yeti
Yeti
Yeti
Yeti
