Precipitated by the premise that Gamera self-destructed to destroy several Gyaos in 1973, the tale picks up thirty three years later, when the son of one of the survivors of that incident finds an unusual egg, from which a baby turtle hatches.
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Toshinori Sasaki as Toto/Gamera, the titular Gamera, Toto is the brave Son of the Gamera that died in the 1970's killing three Gyaos
Naoki Manabe, Jun Suzuki as Gamera - The films titular kaiju, Gamera is a giant fireball breathing turtle that was created by an advanced civilization to exterminate the invading Gyaos.