7.9 774 The TARDIS lands in a petrified forest on an alien planet. Determined to explore, the Doctor leads his companions into the metal city, where they discover the danger of what will become his deadliest enemies, the mutant Daleks. (Originally broadcast in seven parts.)
Runtime: 24
Starts: William Hartnell, William Russell, Jacqueline Hill, Carole Ann Ford
Director: Christopher Barry