British Rail have pinned their hopes on the Advanced Passenger Train. It's an excellent design with a great deal of new technology, from the hydraulic mechanism that tilts the coaches to new braking and suspension systems. Yet from the start the project has been hampered by delays, disputes and breakdowns. A small and youthful team of commissioning engineers was given the task of making the train work. Horizon joined them for a crucial week as the engineers raced against time to solve the train's problems by today. 7 December, when - if all goes well - the train will start the first 125 mph passenger service from London to Glasgow. Narrator Ian Holm
(Rptd next Sunday)