The TARDIS materialises in the snowy Himalayas, and the Doctor makes a return visit to the nearby Det-sen monastery, which he last visited three hundred years ago. He his astonished to find the monastery under attack, apparently from the Yeti which are said to roam the mountainside. Furthermore, the Doctor discovers that his friend the High Lama his still alive, his ancient body under the influence of an apparently unearthly force...
Meanwhile, explorer Edward Travers is determined to track down and capture one of the Yeti. When his colleague is murdered, he refuses to blame the creatures and instead accuses the Doctor. The time-travellers discover that the Yeti are all-too prominent in the area - in fact, they are out to kill anyone who threatens the plans of the disembodies Intelligence which they serve...
Description:
Meanwhile, explorer Edward Travers is determined to track down and capture one of the Yeti. When his colleague is murdered, he refuses to blame the creatures and instead accuses the Doctor. The time-travellers discover that the Yeti are all-too prominent in the area - in fact, they are out to kill anyone who threatens the plans of the disembodies Intelligence which they serve...