Marine adventure adapted from the novel by 'Jaws' author Peter Benchley. Gail Berke (Jacqueline Bisset) and David Sanders (Nick Nolte) are holidaying in Bermuda when they stumble across some hidden treasure in the high seas. Unfortunately, the 'treasure' they locate is a consignment of morphine, and this leads them into a deadly conflict with a gang of ruthless drug smugglers.