The Dalek Invasion of Earth is the second serial of the second season in the British science fiction television series Doctor Who. Written by Terry Nation and directed by Richard Martin, the serial was broadcast on BBC1 in six weekly parts from 21 November to 26 December 1964. In the serial, the First Doctor (William Hartnell), his granddaughter Susan Foreman (Carole Ann Ford), and teachers Ian Chesterton (William Russell) and Barbara Wright (Jacqueline Hill) discover that the Earth in the 22nd century has been occupied by Daleks. They work with a human resistance group to stop the Daleks from mining out the Earth's core as part of their plan to pilot the planet through space.