When his XO (and lover) is killed following a mysterious naval action off the coast of North Korea, "Cdr. Habley" (Adrian Paul) is relieved of command of his hunter-killer submarine. Thing is, his bosses do think that something is amiss in these waters, so engage duplicitous and ambitious "Lt. Cdr. Barker" (Matthew St. Patrick) to entice "Habley" back, despite his golfing leave. Back in the murky waters, they discover that another allied submarine has been sunk with all hands but some manoeuvring onboard sees our captain locked in his cabin and his deputy running a somewhat disgruntled crew int...