Going behind the scenes of the rail network. Scotland's railways are a huge challenge to keep running, from the busy commuter routes to the highland mountains.

Going behind the scenes of the rail network. Scotland's railways are a huge challenge to keep running, from the busy commuter routes to the highland mountains.

Series going behind the scenes of the rail network. With seven million neighbours, the railway must carefully manage relations with local communities.

Series going behind the scenes of the rail network. With seven million neighbours, the railway must carefully manage relations with local communities.

Series going behind the scenes of the rail network. The West Coast Mainline is the busiest route in Europe, linking London to Glasgow.

Series going behind the scenes of the rail network. The West Coast Mainline is the busiest route in Europe, linking London to Glasgow.

Series going behind the scenes of the rail network. When a train cuts through some vital signalling cables, the track staff need to get trains on the move again.

Series going behind the scenes of the rail network. When a train cuts through some vital signalling cables, the track staff need to get trains on the move again.

Documentary series going behind the scenes of the rail network. For staff in Leeds, summer brings binge drinkers, cable thieves, trespassers and flooding.

Documentary series going behind the scenes of the rail network. For staff in Leeds, summer brings binge drinkers, cable thieves, trespassers and flooding.

Documentary series going behind the scenes of the rail network. Staff at King's Cross station in London prepare to open a new, brighter and more spacious concourse.

Documentary series going behind the scenes of the rail network. Staff at King's Cross station in London prepare to open a new, brighter and more spacious concourse.