Piglet has been promoted, but seems to spend more time in his overalls than behind his desk as he grapples with an old American war-horse, the S160 Omaha. Elsewhere on the railway, lovable ticket inspector Bert Blower has a new trainee, and 'king of the carriages' Kieran awaits a Flying Scotsman carriage returning to the railway after being vandalised two years earlier. Plus, there are antics from trainee driver Phil and budget-conscious big boss Chris