An outlaw with a mysterious past must race against a shady treasure hunter to unearth a long lost Spanish shipwreck rumored to have sunk in one of the idyllic bays on the southern Sardinian coastline.
Fishing boat captain Harry Morgan charters his boat. Due to strained finances, he is none too careful as to whom he does business with. Real trouble erupts when Harry hires out his boat to transport four men who turn out to be criminals on the lam from a racetrack heist.