Crossrail: Where Did It All Go Wrong?

Crossrail is Europe's biggest engineering project, a new train line linking east and west London that was meant to open in December last year, but it is years behind schedule, billions over budget and dogged by all kinds of problems. This documentary tracks the troubled project from the very beginning, featuring interviews with former workers, politicians and transport experts, as well as people who were promised that Crossrail would bring huge benefits.