The Doctor and his companions meet a team of underground resistance workers, among the few survivors, but after an unsuccessful attack on the Dalek spaceship, they are all forced to flee the capital.

A perilous journey through England finally brings them to the secret centre of Dalek operations ... and the mysterious reason for the Dalek invasion of Earth!

Radiation nil, oxygen normal, pressure normal ... an earth reading! The TARDIS has landed in London. A menacing deserted London, with no sign of life and no sense of normality, but the decaying city is not as empty as it seems. The year is 2164 and the travellers soon find themselves facing antagonists whom they thought they had destroyed ... the Daleks. They have conquered the Earth.

Ten years after a cosmic storm continents of people were wiped out by a plague. Then the Daleks came in saucers, shipping humans to vast mining areas, turning them into Robomen and against theur fellow humans. Earth contains something that no other planet contains - a magneic core - but why are the Daleks digging for it and how can the Doctor prevent them tampering with the forces of creation?

Original unedited black and white recordings. First transmitted November 21st - December 26th 1964

Running time: 76 mins approx. (Tape 1); 74 mins approx. (Tape 2)

Produced by Verity Lambert
Associate Producer: Mervyn Pinfield
Directed by Richard Martin