Designed specifically for operating through the Channel Tunnel with freight and passenger workings, the power and engineering sophistication of these locomotives sets them apart from all previous locomotive designs. The testing of Class 92s in Czechoslovakia and Austria, unique in modern traction development, is portrayed on exclusive video footage. At a variety of locations including Calais, Dollands Moor (Folkestone), Crewe International EMD and inside the Channel Tunnel , the Class 92s are recorded on test and revenue earning service. Superb trackside film plus a cab ride aboard 92 033 ‘Berlioz’ from Crewe International EMD to Carlisle (Kingmoor) during West Coast Main Line trials completes this video documentary.