A young vacationing couple finds themselves in danger when treasure hunters learn that the two know a way into a deadly Caribbean wreck. Based on the Peter Benchley novel, this movie gives an in-depth look at technical underwater shots and an action packed rendition of the treasure hunting occupation.

The cast includes: Jacqueline Bisset, Nick Nolte, Robert Shaw, Eli Wallach, Earl Maynard, Dick Anthony Williams, Bob Minor, Lee McClain, and Louis Gossett Jr.

Directed by: Peter Yates.