10 October 1985
Materialising in outer space, the TARDIS is attacked by a missile fired from the dark side of the moon.
Back on Earth, the newly-formed United Nations Intelligence Taskforce, led by Brigadier Lethbridge-Stewart, is disturbed by a series of UFO sightings over Southern England.
Meanwhile, a large consignment of mysterious crates is delivered to the headquarters of International Electromatix, the largest computer and electronics firm in the world.
These seemingly unconnected events-but in reality the preparations for a massive Cyberman invasion of Earth who with one aim-the total annihilation of the human race.
- Home Sweet Home?
- Old Friends
- Cat and Mouse
- Hitching Lifts
- Skeletons and Cupboards
- Secret Weapons
- Underground Operations
- Counter Measures
- The Nick of Time
DEVIATIONS FROM THE TELEVISED STORYa
- The novel includes the UNIT rescue scene of Professor Watkins not included in the original televised transmission.
- Gregory is shot and killed by Benton during the rescue of Watkins instead of being killed by a Cyberman in the sewers.
- Vaughn convinces Rutlidge to shoot himself.
- International Electromatics is renamed International Electromatix. The logo is also changed from a representation of the letters to a lightning bolt insignia and the company has a private commune.
- Jamie writes “Kilroy was here” in the cell, a phrase popularised by American soldiers during WWII.
- The language is more explicit than the televised version: Packer calls The Doctor a “bastard.”
- The Brigadier views the TARDIS dematerialisation at the end of the story, the first time this has happened.
- There is a third man with Benton and Tracy when they pick up The Doctor and Jamie.
- Turner is not present in the early aircraft scenes, not appearing until the Brigadier sends him up in the helicopter.
- Planet 14 is referred to as Planet Sigma Gamma 14.
- The policeman killed in the sewers is described as “young”: On television, he is middle-aged.
- There is a second private, Harris, with Turner in the sewers who is injured during the battle. The sergeant with the group is not identified as Walters.
- Packer strikes Jamie across the face upon recapturing him at IE, causing him to bleed.
- The Doctor addresses Turner as “young man”, a phrase more likely to come from his first incarnation.
- The missile base is renamed from Henlow Downs to Henlow Flats. Major Branwell becomes Squadron Leader Bradwell and Sergeant Peters become a flight lieutenant. These are RAF ranks rather than the army ones given on screen (a href=”cs6ep3″ title=”The Invasion”>)
- The Doctor is seen to have a neurister fitted when the signal is turned on, rather than it falling off.
- The Russian shuttle base is named Nykortny, an in joke referring to Nicholas Courtney.
- The Doctor seems to take longer to realise the Cybermen can launch the Megatron bomb without the signal