Trains have played a crucial role in the war effort in the major conflicts of the past 150 years. These trains were a vital cog in the military machine from carrying troops, to moving hospitals, to being transformed into actual weapons. In this compelling series we tell the stories of these incredible train. We combine expert interviews, authentic reconstruction, engineering graphics and archive, highlighting the extraordinary human stories alongside the engineering detail and military perspective. The stories are dramatic, exciting and filled with fascinating historical detail. Each of these incredible stories is set against a backdrop of conflict and we put the events into context.