Water skiers ski in water. Slo MoShun IV wins Gold Cup for its owner Stanley Sayres and racking up a speed boat record mark of 185 mph on Lake Washington in Washington. Scene changes to speed boat racer John Cobb wearing a helmet as his boat "Crusader" is towed out to deeper water. A man talks on telephone. View of boat operated by John Cobb achieving 200 mile per hour speed record, but then the boat appears to explode or destruct completely at the end of the run, and John Cobb dies at Loch Ness, Scotland.