'Nick went head down, finning desperately to catch the swirling body which tumbled like a leaf in high wind. He had a fleeting glimpse of Baker's face, contorted with terror and lack of breath, the glass visor of his helmet already swamping with icy water as the pressure spurted through the non-return valve. The Chief's headset microphone squealed once and then went dead as the water shorted it out.' Robbed of his wife and ousted from his huge shipping empire, Nick Berg is hell-bent on vengeance. It is the sea which gives him his opportunity. When his arch-rival's luxury liner is trapped in the tempestuous Antarctic, Nick stakes all to pit his powerful salvage tug, the Warlock, in a desperate race against time and the elements . . .