According to a legend of Okinawa, when a black mountain appears in the skies above the clouds, a monster will come and destroy the world. However, if this prophecy is true, two suns will be presented (an optical illusion from the east) and fight off evil monsters to rescue the world. In a cave near the city, an engineer and an archaeologist uncover a statue of a strange creature of the protector of Okinawa, known as King Caesar. He is believed to be one of the monsters to fight for humanity in the prophecy. Later, a black mountain appears in the sky. Godzilla then rises from a dormant volcano and starts an attack. Many people, however, does not believe the monster Godzilla will destroy Earth. That reflection is reinforced when Godzilla attacks Anguirus and nearly kills him. Why did he attack his friend In a surprising turn of events, another Godzilla appears, only to discover that the attacker is an impostor.MechaGodzilla later revealed as a cyborg of titanic proportions that was designed and created by aliens to destroy the original Godzilla. After Godzilla is dead, he comes back, super charged with electricity from a thunderstorm gathered on the Island of Monsters. With the help of summoned King Caesar, Godzilla destroys MechaGodzilla and returns to the sea.
