Tracking down a serial killer who lures his victims into isolated areas before killing them live on social media; Syd has a dangerous secret that clashes with McKenna's complicated past.

Syd and McKenna are called to investigate when a body seems to plummet from the sky; the partners realize they need to trust each other to escape the ghosts of their pasts.

Time is up – Syd and McKenna need to get Knox’s fentanyl into police custody while leaving no trace of their own involvement. But can they pull it off when McKenna is distracted by Izzy’s strange behavior and a ghost from Syd’s past returns to haunt her?

While fighting with their own complications, Syd and McKenna try and find the killer behind the death of a transgender woman. Syd must face her past as the hunt for Knox intensifies. McKenna helps Izzy deal with her grief.

It's busy for our team of detectives as they continue to investigate the case of the missing diamonds, and the task force executes a major drug bust. With the treat of Knox looming, both Syd and McKenna must confront some of their deepest secrets yet.

As Syd and McKenna finally close in on Gabriel Knox, a shocking revelation makes their fight more personal than ever before.

Syd, McKenna and the team band together as they race against the clock to save one of their own, finally coming face-to-face with their greatest enemy.

With McKenna's help, Syd searches for Jen's killer as she grieves the loss of her friend. The death of a Koreatown legend has the community up in arms wondering who could be responsible.

As the team searches for the culprit behind the Koreatown crime surge, McKenna is triggered by memories from her experience in Iraq. Syd discovers a tape of Jen with an unexpected client.

After the team connects a new mobile app to a string of crimes, it learns that the Koreatown crime wave is far from over. Syd discovers a shocking truth about who Jen really was.

Amidst the chaos of investigating a case that overlaps with Nico's new hustle, McKenna starts family therapy, and Syd delivers bad news to Jen's family.

After sharing the truth about Jen's passing with her family, Syd receives some unexpected help on the case. McKenna and Patrick make a tough decision.

The LAPD team races against the clock to rescue one of their own.

Syd learns that the crime wave in Koreatown is forcing people out of their homes, drawing the attention of Ricky Leon. The LAPD searches for the team responsible for a deadly dispensary robbery.

When Emma goes missing, Syd will stop at nothing to bring her back home to her family. An undercover McKenna attends a veteran's retreat that could be sourcing the highly skilled Koreatown criminals.

McKenna grieves the death of a loved one with Syd by her side. The LAPD detectives work as a united force to put an end to Lustrum Holdings and restore peace in Koreatown.