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.

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Main Cast: Patrick Troughton, Frazer Hines, Deborah Watling, Jack Watling, Wolfe Morris, Charles Morgan, Norman Jones, David Grey, David Spenser, Raymond Llewellyn

Director: Gerald Blake

Writers: Henry Lincoln, Mervyn Haisman

Editor:

Cinematographer:

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