This Doctor Who story was first broadcast in six episodes in 1964.
It was written by Terry Nation.
This audio version is a reading of the Terrance Dicks Target novelisation, narrated by William Russell with Dalek voices provided by Nicholas Briggs. It also includes music and sound effects.
The TARDIS materialises, the Doctor surmising from the surroundings that they have landed in London, only to find it devastated and in ruins. It turns out the year is some time after 2164 and, after seeing a flying saucer, they realise that the Earth has been invaded by aliens.
Barbara and Susan are taken by a couple of refugees to a nearby shelter in an abandoned Underground station and meet resistance fighters; the Doctor and Ian stumble across bodies wearing strange metal helmets and soon find an army of them. They are stunned when they see a Dalek rising from the River Thames…
The CD can be purchased from all usual retailers.