Patrick Troughton, Deborah Watling. Aided by his two assistants Jamie and Victoria, the Doctor lands the TARDIS on Telos, last resting place of the infamous Cybermen. There he discovers a band of archaelogists on a secret expedition to unearth the reason for his old enemies' extinction. In the underground shadowy depths, they find the icy tomb. A whole army in hibernation-a threat to no one, if the temperature remains low. But if the traitor in their midst gets his way, things could really heat up. Story 37 from Season 5. 4 episodes on 2 DVDs. 1967/color/95 min/NR/fullscreen.