Terry and Jason have been called in to move legendary Steam Locomotive Britannia. The 68-year-old locomotive has undergone a major restoration in Crewe and is scheduled to start running at the Severn Valley Railway. But to get the famous engine to the preserved line, it must be moved 70 miles by road through unforgiving rush hour traffic.

Meanwhile Gavin and Callum need to transport a prototype battery-powered commuter train 422 miles to Scotland. The team will have to load it onto two trucks and drive cross-country on a journey that will see them slice a path through narrow, twisting Scottish lanes, a titanic task, even for the world's toughest Train Truckers.