In Memphis, TN, a store clerk is shot during a robbery at a convenience store. Sgt. Connie Justice and Sgt. Ron Collins find extensive forensic evidence at the scene but none of it points to a suspect. Their only hope is surveillance cameras that captured the violent struggle on tape.

Memphis sergeants respond to an unusual scene, a dead man hunched over a swing set. Working with clues found on the crime scene, Sergeants piece together information and locate potential witnesses. The case takes an unexpected turn when they are able to locate and crack an uncooperative witness. In Miami, Detective Fernando Bosch investigates a murder that takes him across state lines.