On a hot summer day in Richmond, Detective Shane Waite is called to a local apartment complex where there is believed to be a dead body inside the trunk of a car. Waite discovers a bound murder victim stuffed in the trunk of the car. Detective Waite theorizes that the murder victim was killed at another location and transported to the apartment complex. With no witnesses and no original crime scene, the detective has to rely heavily on the forensic evidence gathered from the victim's body. The only other piece of physical evidence is the victim's car. Detective Waite has forensic tech Detective Faith Flippo test the vehicle for blood, DNA, and anything else that might help identify the killer. A break in the case occurs when Detective Waite receives a 911 call from a witness who said he that heard two gunshots the night of the murder at his apartment complex and saw two men entering the building.

Two men who live next to each other in a housing project get into a deadly argument. One is shot and killed. Detectives Crewell and Williams take the two men's girlfriends back to headquarters to find out what happened. One story tells of murder, the other self-defense. Detectives try to unravel the different accounts given by the girlfriends. The key may lie with a gun that was recovered from a trash can behind the house. A Federal lab tests a bullet found at the scene and the gun to determine if it is the murder weapon. Meanwhile, Crewell and Williams try to find holes in the girlfriend's stories. As the girlfriend's stories start to fall apart, the suspect on the run is feeling the heat.

Lead Homicide Detective Wally Everett and his partner Detective Mike Smith, are called out to a crime scene where a body lays hidden between some hedges and the porch of the victim's grandmother's house. The victim, a male, is face down. Strewn around the front lawn are seven bullet casings, evidence suggesting that the victim was shot multiple times. As detectives investigate the immediate area, they discover clues of the victim's alternate lifestyle - and they wonder if there may be a connection between that and his murder. Each piece of evidence takes them closer to their suspect and his motive.

In the dead of night, Homicide Detectives, Thompson and Pence are called out to a bloody crime scene: a body, riddled with bullets, is found on a porch in a residential neighborhood. Detectives find the tenant asleep in the house, but they don't know if he is a suspect or a potential witness. The tenant knows the victim, but claims to have no knowledge of the murder, and he seems to have a seal-tight alibi. Evidence at the crime scene: the body, the blood, the victim's broken cell phone and a broken vase, all paint a portrait as to how the crime went down. According to the victim's family, he had no known enemies. A search warrant, along with analysis of the evidence and 3D crime scene scans; help to rule out a suspect. With no suspects or leads, Thompson turns to a recording of the victim's 911 call. In a surprising discovery, the victim named his killer during his last moments of life and the hunt is on.

Detective Mocello responds to the scene of a suspicious fire in the bedroom of a first floor apartment. He doesn't know if it's a homicide, an accident, or a suicide when he arrives. But he soon discovers that the deceased victim's charred body has sustained serious trauma. While arson investigators pick through the soot, Mocello and the team find a gas can, a set of keys in the parking lot and a shoeprint on a nearby railing. Mocello theorizes it could have been a burglary gone wrong. But then Mocello meets with the victim's landlord and learns of a troubled relationship the victim had with a relative. With the evidence they've collected, they'll have to determine whether they should be hunting for a stranger, or a relative.

On the morning of July 5th, the body of the victim is found lying face up in an abandoned lot that had been used to shoot off guns the night before in celebration of Independence Day. More than 60+ shell casings are collected from the crime scene, which detectives hope will include an essential clue. A tip leads detectives to a possible suspect, who denies any involvement in the killing, although his polygraph may show otherwise. Detectives search his girlfriend's house for other evidence. Meanwhile, rumor on the street is that a high-level dealer was actually the shooter. As their list of suspects grows, the case quickly evolves into what seems to be a conspiracy -- but without an on-the-record eyewitness, Detective Simms won't be able to prove the case.