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.moreless
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.moreless
Captain Joel Rucker orders the officers to monitor the streets of Los Angeles on Hood Day, and a violent gang war erupts when Officer Bryant intentionally leaves a gang territory unattended. Detective Robinson practices his speech for his daughter's Quinceañera during a murder investigation. Officers Cooper and Tang investigate a robbery in a strict Orthodox Jewish home, which leads Tang to reveal parts of her past.moreless
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.
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.moreless
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.moreless
Officer Jessica Tang is served with divorce papers in the morning that appears to have affected her judgment in a shooting later in the shift. Sammy Bryant holds a grudge against Ben Sherman for not backing him up over drug evidence that may have been planted during a previous arrest. Meanwhile, Lydia is still hesitant to discuss her pregnancy with Ruben and Det. Fernandez.
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.moreless
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.moreless
Officer Jessica Tang prepares for her last day on patrol before she transfers to another precinct as sergeant, but she needs to deal with unresolved issues on her beat first. Ben Sherman and Danny Ferguson are partnered together as Sammy Bryant recovers from his injuries, but Ben wants to spend his time helping the prostitute and her daughter get away from the abusive pimp who is controlling their lives. Meanwhile, Lydia Adams makes a decision about her police duties during the rest of her pregnancy.moreless