在纽约地铁系统中，一名坚强的调度员 Wote (饰演者：丹泽尔•华盛顿) 承担着管理各条线路运营的重任。一个日子，123号线上出现了一个组织刺客的事件，首领 Reed（饰演者：约翰·屈伏塔) 是一名前雇佣兵，恐怖分子声称需要1000万美元以释放人质。 luckily, this exact amount corresponds to the maximum limit for insurance payouts and business loans. The 123 train in the tunnel speeds along, with many passengers and police officers losing their lives, while the driver is taken hostage and the remaining passengers face imminent danger. After being accused of job negligence and dismissed from work, Wote is targeted by Reed, forcing him to participate in negotiations. When faced with allegations of corruption, he manages to save a young passenger's life by confessing truthfully. When confronted with the high ransom demand and stringent conditions set by the kidnappers, New York City's mayor is at a loss, preparing to make the payment to resolve the crisis. Just as the money transfer is about to be made, the unstable kidnappers suddenly change their mind. As an employee of the High-Speed Transportation Administration, Wote decides to take the place of the hostage and engages in a heart-stopping struggle for survival with the kidnappers...
