The film is the story of Jack Reacher, a former soldier came to the police to help them investigate a massacre.A gunman took away 5 lives after 6 shots, all the evidence was poured into the suspect arrested.But he still asserted himself innocent.The mysterious Jack Reacher always evades the crowd and relationships, but he knows about this gunman.News of murder has forced him to step out of the darkness and share with investigators what he knew about the prisoner.