One by one, the others disappear. The snowmobiles have followed the leader off the ice into deep water a quarter-mile out. Rescuers rush to help, but four men are dead. Scores of fishermen are miles offshore in cars arid snowmobiles. Suddenly, a winter storm kicks up.
Headlights flash as all race for shore.
But these sportsmen aren't aware that even thick ice bends with the weight of each vehicle. And when a car moves on ice, the bending wave travels with it, creating a constant ice wave that may spread 100 feet in all directions. If other cars get too near, their waves cross. A plow has opened a road and at first the going is easy. But then, whether from the wind or the riptide, the road splits.