The Doctor determines that the globe-like objects that fell to Earth contain some form of intelligence and Liz suggests it may be part of a collective intelligence. Clearly the Autons have been created to house this alien intelligence. When they learn that the factory has produced a replica of Major General Scobie for Madame Tussaud's in London they realize the plot is to replace senior government officials with their lookalike Auton. The Doctor has to devise a weapon he can use against them.
Did You Know?
The factory where UNIT fight the Autons is the same factory where they fight the cybermen in the story "The Invasion" featuring Patrick Troughton
as the Doctor. See more
In the wax museum, just after Liz remarks that "there are no astronauts," etc., the "mannequin" just over her right shoulder (dark-haired woman in blue dress) opens her eyes briefly and looks up before returning to her pose. See more