The kids in South Park have fallen victim to the latest fad: Chinpokomon, a Japanese cartoon/toy line/video game. The adults are concerned about the odd behavior of the children, who have started speaking in Japanese and resembling anime characters. It is soon discovered that Chinpokomon is actually a ploy by the Japanese to overthrow the American government with a loyal horde of brainwashed child-soldiers. To avoid fighting a war against Japan and their own children the adults set out to stop them.