With the Doctor suffering from the time experiment, the clandestine schemes of others start coming to light, along with the secreted purposes to which the tachyonic generator has been used.
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Excuse me for reminding you, but this is a sterile planet. There haven't been any Argolins born here since the war.
Which was forty years ago, but how old do you think I am, Mr. Brock?
[It is obvious that Pangol is only twenty years old