The Daleks (also known as The Mutants and The Dead Planet) is the second serial in the British science fiction television series Doctor Who, which was first broadcast on BBC TV in seven weekly parts from 21 December 1963 to 1 February 1964. Written by Terry Nation and directed by Christopher Barry and Richard Martin, this story marks the first appearance of the show's most popular villains, the Daleks, and the recurring Skaro people, the Thals. In the serial, the First Doctor (William Hartnell), his granddaughter Susan Foreman (Carole Ann Ford), and her teachers Ian Chesterton (William Russell) and Barbara Wright (Jacqueline Hill) land in an alien jungle and are captured by the Daleks, a race of mutated creatures who survive off the radiation that remains in the atmosphere after a nuclear war with their enemies. As the group attempt to escape the Daleks, they discover more about the planet and the ensuing war, and attempt to broker a peace.