Gamera: Guardian of the Universe

An ornithologist investigates reports of a monstrous new species of bird just as a teenage girl is gifted an amulet found on mysterious atoll. As the creatures begin to attack, an ancient guardian with a bond to the girl emerges.
A ship runs aground on a mysterious atoll leading to an investigation by insurance representative Kusanagi, who discovers an ancient bead that he gives to his daughter Asagi. Meanwhile, ornithologist Nagamine investigates reports of a new species of large bird named Gyaos. As the Gyaos begin to attack, an ancient guardian with a bond to Asagi emerges.