In this action-packed thriller, Liam Neeson plays an insurance salesman, Michael, on his daily commute home, which quickly becomes anything but routine. After being contacted by a mysterious stranger, Michael is forced to uncover the identity of a hidden passenger on his train before the last stop.

As he works against the clock to solve the puzzle, he realizes a deadly plan is unfolding and is unwittingly caught up in a criminal conspiracy. One that carries life and death stakes for himself and his fellow passengers.