In 1937, a Chinese martial artist returns to Shanghai to find his teacher dead and his school harassed by the Japanese.
A hibernating species of giant carnivorous bird is awakened on a Japanese island shortly after the Japanese military encounters an unidentified mass moving beneath the water off-shore.
In a small Japanese village, a young woman discovers the means for her revenge, while Gyaos birds are sighted around the world and humankind debates Gamera's allegiance.
Just when Hideki thinks he will lose his virginity, he gets hit by a car, and dies. God gives him a 2nd chance by placing his mind into the body of Sachiko's best friend, a girl. Can he convince Sachiko of his love?