A bestselling mystery author is murdered. Meanwhile, Det. Lucas' personal life suffers; and Angie receives a welcome surprise.

A case from Cross and Flynn's past reemerges and causes distress for both of them, making Flynn realize they have to be honest about their history.

Angie tries to take down a criminal who is determined to end her career.

A father is murdered and his daughter is kidnapped; Angie continues on the Neville Montgomery file.

A tarot card reader fails to predict her own murder; Vega hears from the doctor.

A prime suspect in a murder case may be a victim of foul play herself.

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

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.

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

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

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.

The first season ends with Angie's son Manny preparing to leave for college. Meanwhile, an investigation into the murder of a teenage boy is linked to a past homicide that sparked Angie's interest in police work.

Flynn and Vega investigate the drowning death of a socialite, and an unlikely party becomes a suspect in the case. Meanwhile, tensions between Flynn and Sgt. Cross escalate.

Flynn and Vega are pulled away from Vega’s fathers wedding to investigate a skydiving jump gone wrong. While working the case, Angie makes an effort to regain Vega’s trust by sharing a sensitive file that contains information on Sgt. Cross.

The team investigates a pilot who may be using his career for murder; Angie copes with Vega.

The team discovers two bodies at a surgical clinic; Angie is afraid someone's following her.

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

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

A man is trampled by his own horse, and the detectives suspect that the death was a homicide. Meanwhile, Vega discusses his concerns about the upcoming League of Nations Trial with Sgt. Cross; and Angie has a confrontation with prosecutor Samantha Turner.

The detectives' investigation into the murder of a high-end call girl is complicated by the revelation of her shocking double life, while Angie tries to adjust to Lucas being the primary investigator and becomes distracted when surprising details of the Montgomery case come to light.

All clues in the murder of an armed robber lead the team to a sweet florist.

The team searches for a common denominator in three homicides.

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.