A group of world leaders awakens a creature beneath the ocean floor, and mankind's only hope rests on an alliance between the giant ape and his mechanical arch-nemesis.

　　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 …