What did Professor Chaos do in order to take the residents of South Park down?
That was revealed on South Park Season 21 Episode 4 when the elusive villain used Facebook to his advantage and set up a bunch of traps.
With the boys ready to go to war once again for their town, they were given a shocking offer that made them question whether it was worth fighting.
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Paul Dailly is a staff writer for TV Fanatic. Follow him on Twitter.