Recognizing the destructive power of its captive giant Ape, the military makes its own battle-ready A.I., Mecha Ape but its first practical test goes horribly wrong, leaving the military no choice but to release the imprisoned giant ape to stop the colossal robot before it destroys downtown Chicago.

在偏远科学哨所工作的四名男子揭开了该设施历史中令人不安的秘密，预示着一种神秘的威胁即将到来，这种威胁不仅会吞噬这些人，而且可能会吞噬地球上的所有人。