In New Orleans, when an eyewitness points out a potential suspect at the crime scene, Detective Nick Williams must determine if they have the right guy. New Orleans detectives prepare to face an armed gunman suspected to be hiding in his apartment after killing two men on his doorstep. When a man is randomly shot in front of his sister’s house, a disturbed neighbor may be the most likely suspect. In Mobile, when a bleeding young father is found by his friends, detectives are surprised to discover who pulled the trigger.