Documentary following the exploits of a family-run crew of haulage specialists as they move the heaviest, longest and most precious locomotives around the world

Expert hauliers Eric Harrison and Chris Case move The Royal Highland Fusilier halfway across the country to the Great Central Railway's Diesel Gala in Loughborough.

Zak and Alex face a four-day mission to deliver a pair of classic steam locomotives for an Autumn Steam Gala at the Mid Hants Railway in Hampshire.

Heavy haulage experts Ian Bagladi and Jamie Turnbull need to move a classical but abandoned 63-year-old, 70-tonne locomotive, through the English countryside.

Kevin and Kieran move three state-of-the-art trains, fresh in from Japan. They need to transport them from the North East port of Redcar to a factory in Doncaster.

The crew head to Germany to collect a maintenance machine so large it needs to be loaded onto two trucks. Eric and Chris oversee a diesel-engine exchange.