1995. The FBI has been trying in vain for more than 15 years to catch a terrorist known as the Unabomber, who mails explosive devices, resulting in the deaths of three people and dozens of injuries. Agent Joanne Miller is trying to find leads and identify the criminal by examining the manifesto published by the Unabomber in the press. One day, she receives a tip from colleagues in another state that could lead to the suspect.