A wall of silence from a frightened community hampers efforts to solve a brutal murder; and a mother of two is shot execution-style in her kitchen in an affluent neighborhood.
In Philadelphia, Sergeant Irma Labrice and Detectives Leon Lubiejewski and Michael Gross don't have much time to find a murder suspect, and they don't have much to go on--the victim's body was burned beyond recognition.
Detectives Dillian and Jewell join forensic anthropologist Laura Fulginiti to determine the identity of a female skeleton found in the desert. And the shooting of a teenager at a party puts detectives on the trail of a shooter wearing a ski mask.
Miami homicide detective Mayree Morin and her team find a man who's been shot assassination-style at least a dozen times. And the murder of a celebrated doctor's son leads a veteran detective down a shady path of halfway houses and strip clubs.
Hours after a jealous stripper vows revenge, her two-timing boyfriend is shot and killed. But the girlfriend is not the shooter, and it's up to Detective Tom Kulesa of Phoenix PD to unravel the mystery.