Ishiro Honda directs this Japanese adventure sequel featuring the gigantic ape Kong. A team of scientists have built a mechanical version of Kong in order to extract a radioactive element at the Earth's core. When the robot Kong fails in its mission, the scientists decide to capture the real thing to finish the task. However, events rapidly spiral out of control when Kong escapes, resulting in a city-destroying showdown between King Kong and Mechani-Kong in central Tokyo. The cast includes Rhodes Reason, Mie Hama and Linda Miller.