Chicago P.D.
Voight wlecomes his former protégé Kenny Rixton (Nick Wechsler) to the Intelligence unit in “Chicago P.D.” Season 4, episode 10. Matt Dinerstein/NBC

NBC series “Chicago P.D.” returned Tuesday with a crossover episode with “Chicago Fire.” Kelly Severide (Taylor Kinney) was wrongfully accused of committing murder. Fortunately, the storyline wrapped up and now the police procedural will air its regular episodes, starting with one on Wednesday.

According to the official synopsis of “Chicago P.D.” Season 4, episode 10, titled “Don’t Read The News,” the police will find a young woman’s body. She died from multiple gunshot wounds. Once Intelligence investigates the murder, they find out that the details of her case are similar to other deaths that took place in the past. It isn’t long before Voight (Jason Beghe) realizes that they have a serial killer on their hands.

The team starts looking for the serial killer so that the families of the victims, who have been looking for answers, can find some peace.

Episode 10 will be an emotional one for Detective Erin Lindsay (Sophia Bush) since she will meet her biological father Jimmy (Tony Crane) for the first time. Secrets will be revealed when she meets her absentee dad. Although her mother told her that Jimmy wasn’t around in her childhood because he was in prison, Lindsay will learn that it is untrue. He was out of prison and started a family with another woman. He even has kids.

The more Lindsay discovers the truth about her biological father, the more she will lean on her live-in boyfriend Halstead (Jesse Lee Soffer) for support.

Elsewhere, Ruzek (Patrick John Flueger) will take an undercover assignment. In order to fill the void left by Ruzek’s temporary exit, Voight will bring his former protégé Kenny Rixton (Nick Wechsler) to the team. They used to work together busting gangs back in the day.

Voight believes Kenny can become a great detective. However, Atwater (LaRoyce Hawkins) and Halstead don’t trust Kenny.

“Chicago P.D.” Season 4, episode 10 premieres Wednesday, Jan. 4 at 10 p.m. EST on NBC.