Reckoning – John copes with the aftermath of his kidnapping. Sammy closes in on the real robbers. Lydia continues to pursue John’s kidnappers and becomes more intimate with Russell.
Chaos – Cooper and Lucero are kidnapped and held hostage, and all the cops are on the case in a desperate scramble to rescue them. Elsewhere, Ben deals with an increasingly erratic Brooke.
The Felix Paradox – Gangsters emerge for the funeral of a high-level drug dealer, leading to chaos on the streets. Meanwhile, Lydia and Ruben unearth police corruption while probing a murder; Ben has suspicions about Sammy; John spirals deeper into loneliness.
Heroes – John desperately tries to save Hicks while facing dark truths from his past. Meanwhile, Sammy is haunted by a lie he told; Lydia and Ruben search for a John Doe; and Ben takes his relationship with Elena to the next level.
Bleed Out – The cops confront their greatest fears. Elsewhere, Lydia is shattered by the death of a baby; Sammy’s altercation with Tammi is scrutinized; Cooper seeks comfort in Hicks; and Ben inches closer to Brooke all while continuing a relationship with Elena.
Off Duty – John mulls over the life he’ll have once he leaves the LAPD; Lydia bonds with a man she sent to death row in the past; an annoyed Sammy becomes a tabloid celebrity in the wake of a heroic act; Ben makes a questionable decision while tracking a drug dealer.
Under the Big Top – Lydia pursues a killer who cooked a victim; John and Lucero bond as they respond to bizarre calls and challenges; Ben and Sammy track bank robbers.
Under the Big Top – Lydia and Reuben track the killer of a man whose body was slow cooked down to the bone. John and Lucero settle into their new friendship during a day filled with strange calls. Ben and Sammy respond to an insane bank robbery in which the suspects throw cash out into the streets as they make their escape in a getaway car.
Babel – A breakdown in the LAPD’s dispatch system makes a difficult job even harder for the cops, all of whom are already grappling with communication issues. Lydia, in a moment of weakness, reaches out to her old flame, Terrell. John is assigned a new partner; Ben and Sammy’s partnership is strained just as Ben makes a romantic connection on the job.
Heat – Ben investigates when Mendoza is injured in a drive-by incident. Meanwhile, Lydia probes the slaying of a female boxer’s husband, and friction reaches the breaking point between John and Steele.