A Japanese geologist discovers that dinosaurs still exist in caves beneath the surface of a volcanic lake.
| Writing | Ichirō Ōtsu | Screenplay |
| Directing | Junji Kurata | Director |
| Writing | Isao Matsumoto | Writer |
| Writing | Masaru Igami | Writer |
| Editing | Isamu Ichida | Editor |
| Lighting | Koji Inoue | Lighting Technician |
| Sound | Teruhiko Arakawa | Sound Recordist |
| Camera | Sakuji Shiomi | Director of Photography |
| Directing | Tomoomi Yoda | Assistant Director |
| Sound | Masao Yagi | Original Music Composer |
| Art | Yoshimitsu Amamori | Art Direction |
| Production | Keiichi Hashimoto | Producer |
