7.7
S4E1 - The Vanishing Policeman
While Detective Angie Flynn and Staff Sergeant Vega adjust to his new role, the suicide of an officer with whom Angie and Detective Brian Lucas worked on a crime scene turns the team’s investigation into a hunt for a cop killer.
March 22, 2016, midnight
8.7
S4E2 - The Dead Name
Angie fills in as staff sergeant while investigating a football player's wife's murder.
March 29, 2016, midnight
7.5
S4E3 - Index Case
The team goes after a killer who is spreading a lethal pathogen across the city.
April 5, 2016, midnight
7.0
S4E4 - The Score
Angie and Paula investigate the murder of an ex-con. Vega faces his boundary issues with Dr. Rogers and Lucas.
April 12, 2016, midnight
9.0
S4E5 - The Scorpion and the Frog
A murder with a familiar signature could mean a woman was wrongly convicted of a crime.
April 19, 2016, midnight
8.5
S4E6 - Interference
The murder investigation of a suburban mom takes a turn when her child is abducted.
April 26, 2016, midnight
8.5
S4E7 - The Dead Hand
Angie stays with a soldier who demands justice by taking the bullpen hostage.
July 5, 2016, midnight
9.0
S4E8 - Foreign Relations
Angie partners with an international agent to investigate the murder of a British politician's son.
July 12, 2016, midnight
6.5
S4E9 - Remains To Be Seen
The team goes on a hunt through the past to find the killer of a video game designer.
July 19, 2016, midnight
S4E10 - In Plain Sight
A woman is found nail-gunned to death. Angie embraces her relationship with Jack. Vega's frustrations force him to look for other options.
July 26, 2016, midnight
8.0
S4E11 - Natural Selection
A woman is murdered with what appears to be a medieval weapon.
Aug. 2, 2016, midnight
7.0
S4E12 - Chronology of Pain
Angie races to catch a killer who is an expert at covering their tracks.
Aug. 23, 2016, midnight
8.0
S4E13 - We'll Always Have Homicide
Three years after a killer gets away, the team reunites to close the case.
Aug. 30, 2016, midnight