While Ian, Barbara and their Thal friends try to find a way into the Dalek City through the mountains, the Doctor, Susan and Alydon attempt to make their own way in.
Did You Know?
This episode was watched by 10.4 million viewers on its original transmission. See more
When Ian and Barbara are crawling along the rock-face, part of the wall breaks away in Barbara's hand. The damage to the set reveals it to have been constructed from polystyrene. See more
Help me! Help me! I can't hold on! I can't hold on!
Featured in Creation of the Daleks