Greek sponge divers in Tarpon Springs, Florida duel over diving methods and fight over the same girl, and only one will survive.
A pretty routine seafaring yarn about a Greek sponging community where the younger divers want to operate a new form of freestyle diving as opposed to using the established heavy wetsuit practises to collect their wares. Simultaneously, there's a bit of a love triangle between rivals Russell Hardie ("John") & Ben Lyon ("Steve") for the attentions of Ann Rutherford ("Helen"). There is smidge of underwater photography, and some set-piece fisticuffs, but little else to commend this aside from it's brevity.