 Kenny gets killed by the falling Mir space station as the kids are waiting to go to school. At the morgue, a bottle of Worcestershire sauce accidentally gets mixed into Kenny s embalming fluid, causing him to arise from the dead as a brain-hungry zombie. Each person he bites turns into a zombie as well, and soon South Park is overrun with them. Only Chef recognizes the danger, but when he gets bitten too, how will the children save themselves?