Due to some unknown cosmic event, listed in "phases", ants have undergone rapid evolution and developed a hive mind. A scientific team begins investigating strange towers and geometrically perfect designs that the ants have started building in the desert. The ant colony and the scientific team, along with a rural family, make war with each other, with the ants being the more effective aggressors. The narrative uses the scientific team as the mainprotagonists, but also has an ant "heroine" going about her duties in the colony. The film concludes with the last of the cosmic "phases," Phase IV, which promises a new future for all life on Earth.