A group of tired commuters have caught the last train home, ready to hop into their beds for the night. However, their train soon veers off-course and crashes into an abandoned tunnel. The three surviving commuters; withdrawn mother Yi Ling, her son Lucas, and student Janice, are forced to band together and survive the night, as well as avoid the mysterious monster hunting them. Yi Ling still suffers from flashbacks to the car accident that killed her husband and nearly took Lucas` life too. When Lucas is snatched away by the monster, her maternal instincts are tested, and Janice`s ideas of family are challenged as she remembers her difficult relationship with her estranged father. Back at the subway control headquarters, the engineers do their best to make sense of the situation and rescue the survivors.
演员：克林特·伊斯特伍德 约翰·马尔科维奇 蕾妮·罗素 迪伦·麦克德莫特 盖瑞·科尔 弗雷德·多尔顿·汤普森 约翰·马奥尼 格雷戈里·艾伦·威廉斯 Jim Curley Sally Hughes 克莱德·草津 史蒂夫·海特纳 托宾·贝尔 Bob Schott Juan A. Riojas 艾尔莎·瑞雯 帕特里卡·达博 瑞安·库托纳 布赖恩·利比 埃里克·布鲁斯科特尔 Patrick Caddell 约翰·赫德 Alan Toy Carl Ciarfalio 沃尔特·麦克弗森 罗伯特·皮特斯 Anthony Pe