A mysterious comet is revealed to be heading towards South Park Colorado. Cartman, Kyle, Stan, and Kenny must try to stop it before it lands and kill the various evil forces it has spawned.A mysterious comet is revealed to be heading towards South Park Colorado. Cartman, Kyle, Stan, and Kenny must try to stop it before it lands and kill the various evil forces it has spawned.A mysterious comet is revealed to be heading towards South Park Colorado. Cartman, Kyle, Stan, and Kenny must try to stop it before it lands and kill the various evil forces it has spawned.