The Quiet Invasion

The Quiet Invasion was one of the Cyber-Documents, a set of audio-visual documents originating from Earth, which were compiled into the CyberHive. Designated Document 2, The Quiet Invasion was an account of the appearance of CyberNeomorphs on the planet Earth in the year 1985. (AUDIO: The Early Cybermen)

Behind the scenes
The Quiet Invasion corresponds with the Doctor Who story Attack of the Cybermen.