The kidnapping of a young girl causes a tragic trail of events to unfold, jeopardizing the lives of many innocent people. After a freight train wreckage causes disaster on the outskirts of a bustling city, rail engineer and father to Emily, John Bairstow is brought in off the record by the Police for questioning. Suspected of causing the disaster, Bairstow is haunted by intensifying harrowing flashbacks as DCI Taylor ruthlessly presses him for answers.