The first half of this informative and fascinating video is devoted to the newest freight locomotives used in the United States today. Union Pacific's Steve Lee explains the evolution from steam locomotives to the SD80MAC. This is supported by detailed computer animation and scenes of the newest locomotives pulling heavy tonnage across the United States. The second half is dedicated to the high speed passenger trains of the world. Although France's TGV commonly travels 150-200 mph, we get to ride along on a test run at 321 mph! We also travel to Germany to inspect the maglev test train. This high speed train can travel at 300 mph. It floats along a special track, and is thought to be the future of train travel. The days of steel wheels on steel rails may be drawing to an end, but the future is exciting, as you'll see in Super Trains.