C. Thomas Howell

Two meth addicts kidnap John Cooper and Hank Lucero, and the search for them takes priority over everything else happening in the precinct. Elsewhere, Ben Sherman juggles obstructing Sammy Bryant's search for Strokeface with pacifying Brooke who is increasingly unhinged.

It seems every gang member in the basin will show up for a drug lord's funeral, and the officers must deal with the resulting free-for-all on the streets. Ben Sherman makes the decision for Sammy Bryant about the tape, but does not expect the results the decision brings. Lydia Adams and Ruben Robinson work the murder of Sgt. Hill's son, but disagree on how to handle the evidence that incriminates another officer. Elsewhere, John Cooper's isolation feeds his depression.

Lydia Adams and Ruben Robinson search for a John Doe. John Cooper's attempt to rescue Hicks is hampered by past demons. Sammy Bryant weighs telling the truth about the tape. Ben Sherman makes a commitment to Elena while still involved with Brooke.

Tammi strikes back, which means Sammy Bryant must answer questions from Internal Affairs about their altercation. John Cooper turns to Hicks for a sympathetic ear after a bad day, but he doesn't find one. Ben Sherman enjoys a complicated love life. Lydia Adams investigates a baby's death and is more shaken than she would like to admit.

Ben Sherman takes steps to arrest a drug dealer, Dewey Dudek's foot pursuit turns dangerous, and Sammy Bryant starts his 15 minutes when an action turns him into a mini-celebrity. Elsewhere, John Cooper wonders what retirement will do to him and a death row inmate reaches out to Lydia Adams.

John Cooper and Hank Lucero spend their shift answering odd calls. Sammy Bryant and Ben Sherman's shift is consumed by a bank robbery. Meanwhile, Lydia Adams and Ruben Robinson track a killer who appears to have cooked his victim's body.

John Cooper gets his new partner on the same day MCDC has a major outage and emergency calls aren't dispatched timely. Amidst the ensuing chaos, Sammy Bryant and Ben Sherman's partnership becomes more strained. Elsewhere, Lydia Adams tries to connect with an old love.

John Cooper's routine traffic stop turns into a confrontation with boot Gary Steele. Lydia Adams looks into the murder of a man whose wife is a boxer. Ben Sherman does some investigating of his own after a drive-by shooting injures Dave Mendoza.

John Cooper's new boot, an Afghanistan war veteran, rubs him the wrong way. Lydia Adams grapples for the perfect balance of work and parent responsibilities. Elsewhere, Sammy Bryant files for custody against Tammi, and Ben Sherman hooks up with a new cop who has a dangerous attitude.

Ben Sherman continues to help a prostitute and her daughter, and he and Sammy are attacked by the woman's pimp. Lydia and Ruben investigate the murder of a gangbanger who may have been killed over a graffiti tag. Jessica Tang's promotion to sergeant could be compromised due to her shooting of an innocent bystander.

Lydia and Ruben investigate the death of a young nanny that appears to be a suicide, but first they have to find the children who had been in her care. Ben makes matters worse when he tries to intervene in the life of a prostitute with a 13-year-old daughter who is about to follow her mother's career path. Jessica Tang gets good news about the boy she shot, but Cooper still believes she should admit what really happened.

A young man who had been scheduled to testify in one of Sammy Bryant's cases is killed as John Cooper and Jessica Tang are assigned to ride along with a documentary film crew. Det. Fernandez assigns Lydia to work as a field supervisor because the flu has created a shortage in officers on the street.

Cooper tries to save a suicidal teenager who's in a situation that affects him personally. There are serious consequences when Sammy tries to convince a former addict to be an informant. Jessica Tang has a visitor from someone in her past as Lydia and Ruben investigate a possible home invasion that appears to have been staged to cover up a murder.

Jessica's past is revealed after she offers help to a veteran who is homeless. Meanwhile, Sammy takes care of a dog of the vet bill after he accidentally shoots it. Lydia and Ruben investigate the murder of a Good Samaritan as Lydia face a huge change in her life.

Officer John Cooper's past physical problems are tested when he and Officer Tang are attacked by a perp on the street. Detectives Adams and Robinson investigate a convenience store murder, and Lydia charms a grandmother to collect facts on the suspect. Officers Sherman and Bryant ride along with a mistake-proned officer. Joel Rucker takes over as the new captain.

Detective Lydia Adams is assigned a new partner, Ruben Robinson, a former Marine, as she confronts a former confidential informant. Officer John Cooper's successful back surgery allows him to return to the job after his treatment for drug addiction. Cooper learns he has been teamed with a new partner, Jessica Tang. No longer a trainee, Officer Ben Sherman is partnered with Sammy Bryant, who continues to struggle with the loss of Nate Moretta.

Detective Adams is suspended from duty and bonds with an injured witness. Meanwhile, a high-speed chase during which a bystander is killed haunts Officer Chickie Brown as Officer Cooper attempts to clean up a neighborhood.

Detective Sal Salinger asks Lydia and Josie for help when a four-year-old is killed in a drive-by shooting in a series of gang murders. Officer John Cooper is asked to monitor Dewey after he returns from rehab, Ben Sherman is teamed up with Chickie Brown.

When a young woman is found is murdered at the S.U.L.A. campus in Compton, Det. Adams and her new partner, Det. Ray Suarez, investigate the case. Officers Cooper and Sherman attend a funeral in Indian Wells and visit Dewey in a halfway house.