When three members of a notorious Latino gang are gunned down in MacArthur Park, LA's Priority Homicide Division is brought in to investigate. There's little political interest in gang-on-gang violence, but Brenda discovers that the homicides may have been caused by a highly skilled military sniper bent on revenge. As the body count rises and eye-for-an-eye gang violence escalates, Brenda finds herself placing her trust in the father of the alleged killer, who claims he wants to stop his son's lethal mission. But as she zeroes in on the sniper, is Brenda leading her team on a wild-goose chase that will further undermine her credibility?