Thirty days have passed since they laid their neighbors and families to rest in a mass grave at Reynolds Quarry. Four boys are the lone survivors of an outbreak that spread through the food supply and the CDC has issued their county to be quarantined indefinitely. If they attempt to leave they will be gunned down by the soldiers posted at the county lines. While they are on a hunt, a tornado rolls in and they seek refuge in a shelter near the quarry. After the storm passes and the boys emerge, the mass grave is found empty. Hundreds of footprints lead from the quarry to the fields. The boys are not alone.