Tropical island underwater scuba diving swimming murder thriller, in which divers and thieves search for a sunken treasure.
| Actor | Role |
|---|---|
 Jon HallDave Courtney | Dave Courtney |
| NNan AdamsJoanne Godfrey | Joanne Godfrey |
 John FarrowEdward Stuart Godfrey | Edward Stuart Godfrey |
 Jonathan HazeJack Mautner | Jack Mautner |
 Phil PosnerNot listed | Not listed |
| DDave 'Howdy' PetersFermin Fry | Fermin Fry |
| TTookie EvansRaul Estoril | Raul Estoril |
| MMartin DennyMarty | Marty |
| BBob LaVarreCal Priest | Cal Priest |
 Bill AndersonMike | Mike |
| AAbraham KalunaAbe | Abe |