South Park is a quiet town in the United States, where people live a simple and happy life. One day, four friends Cartman, Stan, Kenny and Kyle sneaked into a cheap movie starring Canadian actors P and T, which was full of dirty jokes and foul language. After watching the movie, the four friends learned the foul language in the movie and told other children everywhere. Soon these foul language spread throughout the town. Almost every child in the town went to watch the movie and learned these foul language. These foul language made the adults in the town panic. They thought that the Canadians had corrupted their children. What's more ridiculous is that the US Congress also thought so. So, a war between the United States and Canada started!