The TARDIS lands in a London of future times — a city of fear, devastation and holocaust... a city now ruled by the DALEKS.
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!
