Since Principal Victoria was fired, South Park Elementary School welcomed a PC principal. The arrival of this new principal forced the whole school to follow PC (political correctness). Fat Cartman (voiced by Trey Parker) was suspended for four days for swearing; Kyle (voiced by Matt Stone), who always had a sense of integrity, was also punished for so-called "hate speech". The PC atmosphere quickly spread to the entire South Park town, and everyone began to pay attention to their own words, and they were careful not to cross the line, otherwise they would anger the PC brothers. Stan, Kyle and others instigated Cartman to eliminate the new principal, but the fat man who had always been invincible was beaten badly by the PC principal; at the same time, Stan's father wanted to teach the PC Brotherhood a lesson, but joined the PC in a muddle. What kind of changes will this PC trend bring to South Park?