H.E.A.T. arrives in Japan [finally!] during the course of one of their investigations, only to encounter what appears to be a gigantic ape, who then proceeds to menace the team. Godzilla is called upon to defend them, and during the battle it's discovered that the anthropoid kaiju is actually a giant robot (likely inspired by Mechani-Kong from the Toho film King Kong Escapes) designed and controlled by Japanese scientists, particularly the master female engineer Dr. Ifukube, as a special defense against the epidemic of giant mutations to plague the island nation, and was simply attempting to drive off the H.E.A.T. team for nationalistic competitive reasons [ah, you just gotta love what the concept of nationalism does for the spirit of cooperation among humanity; *hears another audible ""ggggrrr, please spare us your pie in the sky musings, Chris!"" from all conservative and ""moderate"" visitors to my site*].