Intrigue and treachery erupt aboard a captured vessel in the World War II action saga, "Adriatic Sea Of Fire" (1968). This seagoing thriller follows a pair of Yugoslavian patriots as they fight to keep a seized German warship from falling into the wrong hands, eventually plotting to reroute the ship's course to join the Allied forces in England. With a suspicious captain refusing to cooperate and a Nazi collaborator lurking in the shadows, the two friends put their lives on the line to keep the Axis powers from retaking the boat.