简介：　　该剧设定在一辆格拉斯哥到伦敦的卧铺火车上，火车上发生危机并迅速升级，两位陌生人必须合作拯救车上的乘客。

简介：　　DI Colette Cunningham's no nonsense approach to policing has earned her the respect of her Merseyside Police colleagues. She seems unflappable,