After a nuclear test, all insects are transformed into terrible destoyers which are able to crawl up into the windows. The insect barrage is swarming out of the underground hole. Insects appear out in a cycle of four waves of twelve, from black, blue, red to green. This girl's mission is to take stoneshots at the insect invaders. After more than six terrible creatures crawl into the windows, they'll start gobbling up the house. When they eat up six layers of the building, all is over.