Ten months after the small California town of Midwich was struck by a mysterious event during which everyone in the village fell unconscious at once, 10 local women give birth on the same day. As the unsettlingly calm and unemotional children grow at an abnormally fast rate, it becomes clear that they can read adults' minds and force people to harm themselves. Local doctor Alan Chaffee (Christopher Reeve) and federal agent Susan Verner (Kirstie Alley) must team up to battle the alien children.