In the first of a series of five 100 per cent archive film programmes which trace the story of steam locomotives during the middle years of the 20th Century. Many rare scenes are included for the first time on DVD, and locomotives shown include,, along with many others, Great Western "Dukes", "Dean Goods", "Aberdares", "Counties", "County Tanks" and "Metro" Tanks; Southern "Ds", "M7s" and "Lord Nelson".