A Navy intelligence agent heads to Scotland, where he poses as a marine biologist to investigate the theft of millions of pounds in gold bullion from ships off the British coast. However, the locals counter his enquiries with hostility, especially when he sets his sights on a Greek tycoon, whom he suspects may be operating as a modern-day pirate. Thriller, with Anthony Hopkins, Robert Morley and Jack Hawkins. Based on a novel by Alistair MacLean