Travis McGee (Rod Taylor) , un professionnel de la plage et « chevalier errant », affronte le culturiste psychotique Terry Bartell. McGee met tout en œuvre lorsqu'il rejoint une croisière dans les Caraïbes pour traduire le tueur en justice..
As a boy, Dominik watched an American crime boss murder his father, a police officer fighting corruption in Sofia, Bulgaria. Years later, he attempts to avenge his father's death but is imprisoned for 15 years for attempted murder. In prison, he meets an American photo-journalist who shares his enemy and his thoughts of revenge. Released from prison, the two hatch a plot which involves the man's recently-arrived daughter..