This "Steam Classics" records the story of the restoration to main line steam work of one of Sir William Stanier's magnificent "Princess Coronation" class Pacifics built for the London Midland and Scottish Railway, number 6233 "Duchess of Sutherland". 

After many years of static exhibition the locomotive was the subject of a complete overhaul to restore her to her full glory, an achievement which is recorded here for posterity. She then returned to the main lines for which she was built, and her early runs form the main part of this film.