Scientists pursuing the mysteries of the deep are threatened by a beautiful girl who seems to have returned from the dead and by a prehistoric sea creature that dwells in the deadly Bermuda Triangle.
| Writing | William Overgard | Screenplay |
| Directing | Tsugunobu Kotani | Director |
| Writing | Arthur Rankin, Jr. | Story |
| Production | Arthur Rankin, Jr. | Producer |
| Camera | Jeri Sopanen | Director of Photography |
| Production | Barbara Hilse | Production Manager |
| Production | Jules Bass | Producer |
| Editing | Barry Walter | Editor |
| Costume & Make-Up | Emma Randolph | Costume Design |
| Art | Katzov Satsoya | Art Direction |
| Production | Benni Korzen | Associate Producer |
| Sound | Maury Laws | Original Music Composer |
| Costume & Make-Up | Fern Buchner | Makeup Artist |
| Sound | Maury Laws | Songs |
| Writing | Jules Bass | Lyricist |
