We meet the team at Birmingham New Street where a train departs every 37 seconds; it's the busiest interchange station in the country. With unprecedented flooding, Network Rail is wading through a crisis the likes of which it's not faced in decades. Engineers battle the elements, a military operation kicks into gear at Network Rail HQ and station staff deal with stranded passengers.

At a time when customer satisfaction is at its lowest in 10 years, we follow the efforts of staff as they use their ingenuity and years of experience to solve dramatic everyday incidents to prevent them turning into costly consequences. When a train runs a red signal at Birmingham New Street, engineers work through the night to move the stranded train, investigate the cause.

A strike threatens to bring Birmingham New Street station to a standstill and on the outskirts of London, mobile teams discover a home illegally erected next to one of the busiest areas of track in the country. In this episode the network faces a huge challenge with industrial action happening on one of Birmingham city's busiest days of the year.