A woman reporter, a navy investigator, and a heavyset police detective come across a gang which scuttled a ship in order to loot her later, underwater, for a Navy money consignment.
| Actor | Role |
|---|---|
 Mara CordayValerie Hudson | Valerie Hudson |
 Pat ConwayNavy Lt. Brad Chase | Navy Lt. Brad Chase |
| DDan SeymourPolice Lt. Mike Travis | Police Lt. Mike Travis |
 Sue GeorgeSusie - Beach Blonde | Susie - Beach Blonde |
 Florence MarlyLeila Graham | Leila Graham |
 Myron HealeyEric 'Swede' Nelson | Eric 'Swede' Nelson |
 Ralph ClantonSam Marvin | Sam Marvin |
 Lewis CharlesPhil Barry | Phil Barry |
 Dehl BertiJoe | Joe |
 Mickey SimpsonFrank Larkin | Frank Larkin |
| WWilliam KendisRyan | Ryan |
| JJess KirkpatrickConnelly | Connelly |
 Russell ThorsonCmdr. Watkins | Cmdr. Watkins |
| MMack ChandlerHoward Dorrence | Howard Dorrence |
| BBrick SullivanPoliceman | Policeman |