The Dalek Invasion of Earth is a serial in the British science fiction television series Doctor Who, which originally aired in six weekly parts from November 21 to December 26, 1964. This serial marks the final regular appearance of Carole Ann Ford as companion Susan Foreman.
The First Doctor has brought his human companions home to Earth, but two hundred years in their future. Trapped in a strangely quiet and deserted London, the travellers discover that Earth has been conquered by their old enemies — the Daleks. The travellers ally with a band of freedom fighters to reclaim the planet and discover their plan.