Urbankan life forms into cyborgs as the "flesh-time". The four leaders of the peoples have been given additional circuits to help them reason, but this facility can be taken away, as Bigon learns when he rebels against Monarch, and his neural circuit is removed and placed in a container for one hundred years. He explained to the Doctor that Monarch strip-mined and polluted Urbanka in a quest for minerals to improve the ship, and now plans to do the same to Earth. Monarch believes that if he can move the ship faster than the speed of light, he can pilot it back to the beginning of time and discover himself as God. Adric, nevertheless, is rather taken with Monarch, and tensions between him and the Doctor become very strained. It takes The Doctor to break the tyrant's hold over the boy. The Doctor now sets about overthrowing Monarch and, with the help of the human androids led by a restored Bigon, a revolution is put into effect. Enlightenment and Persuasion are decircuited, while Monarch himself (whom the Doctor realises is still organic as there is an oxygen-producing flora chamber on the ship) is exposed to the poison and shrunk. The humanoid androids decide to pilot the vessel to a new home on a new world, while the TARDIS crew departs. Back in the console room, Nyssa suddenly collapses to the floor in a dead faint. Production The working title for this story was Days Of Wrath. Although Castrovalva was the first story aired which featured Peter Davison as the Fifth Doctor, this story was the first in the season to be produced. It was originally decided that after Castrovalva, the Doctor would only have two companions, Adric and Tegan. As a result, the character of Nyssa was to be written out of the series at the end of this story. However, Peter Davison strongly opposed this move because he felt that Nyssa was the companion who was "most suited to his vision of the Doctor". Given this, producer John Nathan-Turner and the rest of the production team relented and Nyssa was retained. The story for the following serial Kinda was already developed with two companions and Nyssa was not featured in that narrative as written. Rather than a complete rewrite of Kinda to include Nyssa in the narrative, she remains absent much of that serial, said to be resting in