ÖZET
A large mining accident sets loose prehistoric Insects and giant pterosaur's on Japan.
- Kenji SaharaShigeru Kawamura, colliery engineer
- Yumi ShirakawaKiyo, Shigeru's lover
- Akihiko HirataProfessor Kyuichiro Kashiwagi
- Akio KoboriPolice Chief Nishimura
- Yasuko NakadaFemale Honeymooner
- Minosuke YamadaColliery Chief Osaki
- Yoshifumi TajimaIzeki, reporter of Seibu Nippou
- Kiyoharu OnakaMale Honeymooner, Sunagawa's friend