Bigon's conflicted loyalty between serving the Urbankan regime and resisting its tyranny while aiding the Doctor's resistance

In the cramped guest quarters, Bigon reveals the horrifying scope of Monarch’s invasion plan to the Doctor. Earth’s population is to be replaced by robotic duplicates using silicon from Earth’s …

Bigon reveals that even once-loyal allies have been corrupted and that their options are nonexistent—no refuge, no weapons, only the distant throne room. The Doctor considers the concealed androids as …