A Marine unit, accompanied by a science team, is deployed to investigate an iceberg larger than Manhattan that poses a threat of incalcuable scope as it flows against the current, leaving a path of destruction in its wake. And it's heading-aiming-for Hawaii. Their mission: to land on the floe itself, and do whatever it takes to disable the threat. But the mission turns out to be much more than expected when the threat becomes not the floe itself,...