The Doctor and the Brigadier head to Farrel's factory but the Master and the Autons have already left and are distributing plastic daffodils around the country.
Did You Know?
The Auton invasion was much different in the original script. The daffodils (and the troll dolls) would be animated when the temperature reached a certain level - a level which would be obtained thanks to a fortuitous oncoming heat wave in Britain. Terrance Dicks
felt this was illogical, as it would make more sense for the Master to carry out his plan in a tropical locale. It was decided to replace this with a broadcast activation signal. See more
It is stated that the Troll dolls are made entirely of plastic but as one of them rolls over on the floor, a zipper is clearly seen on the doll's back showing that this is a costume. See more
Doctor, stop being childish.
What's wrong with being childish? I like being childish.