Some info and a short description of this South Park episode on South Park Zone:
South Park - Here Comes the Neighborhood" is episode 77 of the Comedy Central series South Park. It originally aired on November 28, 2001.
The children at South Park Elementary are presenting science projects. Token gets a check plus for presenting a computer model of predicted weather conditions, while the other students get checks and check minuses.
Tired of being teased for being rich, Token attracts wealthier black families to South Park, fact that will change South Park and will bother South Park citizens. After this is over Mr. Garrison suggests that by selling the empty houses the townsfolk can become rich. Jimbo and Randy tell him that if they do they will become the very thing they hate.
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(The complete plot for this South Park Episode)
The children at South Park Elementary are presenting science projects. Token gets a check plus for presenting a computer model of predicted weather conditions, while Cartman is angry for receiving a check minus on his hastily constructed project and points out to the class Token's wealth in his rage, notably his clothes. Token, the token black child of South Park, happens to be the richest kid in town, and becomes upset when he can find no other kids in the school he can relate to. He tries to get himself and his family to act poor. They shop at J-mart, where the rest of the families buy their clothes, but when he comes to Stan's house with the other boys and brings a DVD instead of a video tape - Token's family being the only people in town with a DVD player - the boys realize that he has not changed.Hurt at his social estrangement, Token decides to arrange for dozens of rich people such as Will Smith and Snoop Dogg to move into South Park, which leads to Mr. Garrison complaining about the "richers" in the town, which in turn leads to ire among the other, less affluent members of the community. However, Token discovers that the rich kids are as different from him as he is from the poorer kids in town. All the rich kids play Polo, buy shops and speak with exaggerated English accents. Token feels so much like an outcast that he goes to live with lions in the South Park Zoo after the rich kids taunt him to do it.
The situation between the rich and poor residents of town continues as the gentrification escalates. Led by Mr. Garrison, the townsfolk enact a series of measures. They decide to plant a lower case "t" cross for "time to leave" in the garden of some of the rich residents, setting it on fire to emphasize their point. They mock the rich residents by insisting they sit at the front of buses claiming it to be the "first class" section. They refuse to let them drink in the bars or eat in the restaurants. In response, the rich residents organize a Million Man March by paying poor black residents such as Chef.
Token eventually decides he does not want to live with lions anymore and leaves. However, he discovers that the poor kids in town who initially made fun of his money did not really dislike him. They only picked on him because they all pick on each other on a regular basis. They decide to stop picking on him for his money, and instead mock him for his reaction to the previous insults as being a "p**sy".
Eventually the townsfolk dress as ghosts and chase the "richers" out of town. The poor townsfolk gather around their abandoned houses. Mr. Garrison suggests that by selling the empty houses the townsfolk can become rich. Jimbo and Randy tell him that if they do they will become the very thing they hate. Garrison shrugs, "Well yeah, but at least we got rid of all those damn n-", and the episode cuts to credits before he can complete the word.