In Florida during a massive storm, a bad choice ends in disaster when Captain Lee gambles on the seaworthiness of the Huckleberry. Then, in Illinois, an old family trick handed down from his grandfather may save Trapper in his hunt for huge flathead catfish. Later, after a dangerous maneuver that damages the vessel, a disappointed Kirk and Mike must give their client some bad news. Finally, Seaver and Mike battle massive whitewater, automobile sized icebergs and the most densely populated grizzly territory yet when they enter the most dangerous stretch of their journey along Alaska's Copper River.