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...

Angie fills in as staff sergeant while investigating a football player's wife's murder.

The team goes after a killer who is spreading a lethal pathogen across the city.

Angie and Paula investigate the murder of an ex-con. Vega faces his boundary issues with Dr. Rogers and Lucas.

A murder with a familiar signature could mean a woman was wrongly convicted of a crime.

The murder investigation of a suburban mom takes a turn when her child is abducted.

Angie stays with a soldier who demands justice by taking the bullpen hostage.

Angie partners with an international agent to investigate the murder of a British politician's son.

The team goes on a hunt through the past to find the killer of a video game designer.

A woman is found nail-gunned to death. Angie embraces her relationship with Jack. Vega's frustrations force him to look for other options.

A woman is murdered with what appears to be a medieval weapon.

Angie races to catch a killer who is an expert at covering their tracks.

Three years after a killer gets away, the team reunites to close the case.