Off the barren west coast of Tasmania a fishing boat crew drag two sailors from the ocean. The only clue as to why they were there is held in a sailor's diary – written in a foreign language. Unravelling the mystery, the Australian authorities must find the vessel on which the sailors had sailed before other interested parties get to it first.<br><br>The discovery of the vessel becomes a deadly race when a saboteur is despatched to ensure that it will be destroyed,...