A suburban woman fights to be believed as she finds herself stalked by a threatening figure who returns to her house night after night. When she can't get help from those around her, she is forced to take matters into her own hands.

　　根據政府機密檔案表示，外星異種正試圖侵略地球，利用洗腦科技造成人類自相殘殺。同時，三名大學生打造了一台高科技機器人，並用來阻止異種大軍的進攻，究竟這台機器人能否成功解救地球，讓人類免於被毀滅的危機嗎？