Timeshift revisits Britain's railways during the era of nationalisation. For all its bad reputation today, the old British Rail boldly transformed a decayed, war-torn Victorian transport network into a system fit for the 20th century. With an eye firmly on the future, steam made way for diesel and electric, new modern stations like Euston were built, and Britain's first high-speed trains introduced. Made with unique access to the British Transport Films archive, this is a warm corrective to the myth of the bad old days of rail, but even it can't hide from the horror that was a British Rail sandwich.