Thrilling aquatic actioner concerns a suboceanic laboratory that is thrown into a trench following a seaquake. Trapped too deep for divers to reach them, the members of a research team learn that their only chance of rescue is a Navy mini-sub piloted by an arrogant commander. But can the vessel get to them before it's too late? Ben Gazzara, Walter Pidgeon, Ernest Borgnine, and Yvette Mimieux star. 98 min. Widescreen; Soundtrack: English; Subtitles: English; audio commentary; featurette; TV spots; isolated music score; theatrical trailer.