After the summer rotation, the homicide unit reassembles itself with several personnel changes. Brodie and Howard are gone, and Falsone and Gharty have transferred in, along with newcomer Laura Ballard from Seattle. Lewis teams with Falsone, leaving Kellerman to partner with Munch; someone shoots at both pairs of detectives, then kills a woman being escorted home by Stivers. The shooter is Junior Bunk, acting on orders from his mother Georgia Rae (Luther Mahoney's sister) to get revenge on Kelle
The Brierre case continues, with Ballard wanting to focus on the Wilsons and Pembleton insisting that the victim's former boyfriend is involved. Gee favors Pembleton's theory, leading each detective to think that the other's ideas are racially motivated. When Felix is brought in for questioning, he admits that he had sex with Melia, but his attorneys cut off any further cooperation by the family. Falsone's curiosity about the Mahoney shooting rankles the trio and causes Cox to start doubting the
The Wilsons go on television to offer a reward. The newspapers are making the Homicide unit look bad and Barnfather wants quick resolution to the case. The man (and his wife) who gave up Junior Bunk are murdered; Falsone and Lewis investigate. The only survivor, their young son, is brought in to find out what he remembers. His memories-- and a recorded phone message-- lead Stivers to believe a former member of the Narcotics unit is involved. The officer cops to a deal that implicates Georgia Rae
A young woman is viciously attacked. Falsone and Lewis are called to the scene because the victim wasn't expected to make it. Stivers is working in Sex Crimes and is second to the scene; however, because Homicide was first it is technically their case. The attack is the third in three months and the bosses decide they'll work the case together. Frank's wife is overdue on her delivery. Tim recommends a restaurant whose salad has been known to ""kick start"" delivery in pregnant women. Frank gives
Prosecutors and detectives from two cities join forces on the case of a teenage girl who was raped in Baltimore and later found dead in New York City. As Munch, Falsone, Briscoe, and Curtis follow leads that point to her father, a dispute over jurisdiction ends with the trial being held in Baltimore – and Danvers and McCoy prosecuting it together. On the witness stand, the father offers a surprise alibi that sends the whole unit scrambling to either disprove it or find the actual killer. Falsone
When a woman is found sexually assaulted and beaten nearly to death - the third such attack in recent weeks - Falsone, Lewis, and Stivers are called in. Falsone works the case despite a shortage of evidence and Gee's insistence that it be handed over to Stivers and the sex crimes unit. His drive to prove himself gets the better of him, and Gee pulls him off the case for assaulting a suspect as it comes to a close. Now well past her pregnancy due date, Mary finally goes into labor and delivers th
Pembleton and Lewis investigate a robbery/murder at a Vietnamese restaurant, in which one of the five victims is an off-duty cop. The only survivors are the family's two teenage children, who reluctantly give the detectives a tip leading to a second cop and her cousin. News that Georgia Rae Mahoney will not be prosecuted sparks a face-off between Falsone and Kellerman, with guns drawn; Kellerman later turns to Cox for advice on dealing with the fallout of the Mahoney shooting. Ballard is rushed
Ballard and Gharty work the case of an HIV-positive man bludgeoned to death at a laundromat, with bleach poured down his throat. Questioning of the victim's many girlfriends leads the pair to a woman who killed him out of revenge for infecting her. One of Munch's ex-wives asks him for help planning her mother's funeral, but no one attends except for a paid mourner and author Peter Maas, who only wants to make sure she is dead. Falsone decides to sue his ex-wife for custody of his son, Kellerman
The semi-nude body of a man is found in a dumpster outside of a restaurant. Bayliss returns Cox a pair of her earrings that she'd left at his place the night before. Disturbed by him doing that in public and while at a crime scene, she suggests they take some time off, instead they decide to break it off. The owners of the restaurant thinks that this murder might be tied to another murder (one that Munch is working). Lewis confronts Kellerman about the Mahoney videotape and the need to let Stive
A white man is found whipped and hanged in an empty house near a church that was a station on the Underground Railroad. Lewis and Falsone get a surprise from history as they work the case: the victim's ancestor, a notorious slave-catcher during the Civil War, kidnapped the killer's ancestor (a free black man) and sold him into slavery. Rumors about Bayliss' personal life begin to spread after Pembleton sees him have breakfast with Ballard following his dinner with the restaurant owner. Guest sta
Cox entertains a gathering of medical examiners with a bizarre case worked by Munch and Kellerman: a man who jumped off a building only to be hit by a shotgun blast on the way down. Her job of deciding whether to classify the death as homicide or suicide gets more complicated with every new fact the detectives uncover. Georgia Rae files a $60 million wrongful-death lawsuit against everyone connected with the Mahoney shooting; when Lewis confronts and assaults her, Gee suspends him indefinitely.
Kellerman is trying to find Lewis, who's disappeared since his suspension. Bayliss is on vacation. Stivers rotates into homicide and Kellerman isn't happy to see her. A priest is found murdered. Falsone attends a custody deposition hearing. A tape is delivered to Channel 11 that contains some startling information from a Swami about the priest's activities involving young boys. Munch and Kellerman seek out the two boys who were at the scene of the crime; meanwhile the other detectives seek out t
With the addition of the latest murder, the ""red ball"" investigation continues full force. The detectives and the returning Bayliss pose as priests in an attempt to flush out any leads. Munch's cover attracts two young thugs, but they prove to be nothing. Gee is called upstairs, where his performance doesn't sit well with Barnfather. Lewis turns up and seeks some help from Falsone. Pembleton receives a call that the two missing boys have been found. Pembleton and Stivers travel to collect them
Pembleton and Bayliss are called to Fort Holabird, where they find the body of a man buried alive on the parade ground. The victim was a member of a small group of espionage enthusiasts, all but one of whom are quickly rounded up, but the full story only comes out when the last member barges into the squadroom wearing an explosive vest. Munch and Kellerman investigate a road-rage traffic accident in which the drivers of a passenger car and a state truck were killed. Cox faces pressure from her s
Pembleton and Falsone take the case of an elderly man who was mauled to death by his grandson's pit bulls, which had been trained for dogfighting. As they investigate and bring in the grandson, they find themselves at odds over his guilt and the uncomfortable truth that he cares for his dogs more than his family. Munch, Bayliss, Gharty, and Ballard get together at the Waterfront to reminisce about some of the dumbest criminals they have encountered. Stivers stuns Kellerman with news that Georgia
When a terminally ill man dies at home, his sister becomes convinced that his hospice doctor deliberately gave him a morphine overdose. Pembleton and Bayliss learn that the doctor may have a history of euthanizing her patients - with or without their consent - and grapple with their own attitudes about mortality. Ballard and Gharty finally bring in the suspects in the drug-dealer murder from "Shaggy Dog, City Goat", and Falsone and Stivers are deeply affected as they close a double shooting in w
A four-year-old boy is abducted while riding a merry-go-round in the park under the supervision of his mother. The Homicide unit, which helps in the investigation of all child abductions, is called in and Falsone is the primary. When the boy's father has an alibi that checks out, the detectives beginning to check on known pedophiles and later they receive a call from the possible kidnapper. When that doesn't pan out, they start over. The host of a nationwide television program, This Weeks Wanted
After a star high-school basketball player is found shot to death in his school's locker room, Munch and Gharty dig through the less appealing details of his life - including his habit of bullying other students - to find his killer. Pembleton and Bayliss try to close a week-old murder, but by accident their efforts instead allow the department to close down a major drug-smuggling operation. Ballard has trouble dealing with Kellerman's blasé attitude over the murder of a Mahoney drug dealer, the
Ballard and Gharty investigate the death of a young single woman who was found shocked with a stun gun and strangled with her own pantyhose. A second such victim is soon found, leading the pair to a husband and wife who accuse each other of not just these two murders, but three more in other cities. A spate of anonymous tips on the Mahoney-related cases allows the detectives to close all of them. Falsone realizes that the information in those tips had to have come from Lewis, who learns from Gee
Two prominent business executives are found dead within hours of each other. Although the deaths turn out to be suicides, the detectives uncover evidence pointing to a blackmailer who had threatened to expose the victims' most lurid activities. The case becomes even more complicated after the blackmailer is found murdered. Two high-ranking Mahoney associates are shot dead, leading the detectives to realize that the civil war in Georgia Rae's ranks has gotten out of control. As Lewis returns to d
An old man wanders into the squadroom claiming to know who killed a young girl in 1932 - the oldest unsolved murder in BPD history. Falsone takes the case and visits Thomas Finnegan, a long-retired detective who was the last officer to investigate it. As they pursue the new lead, Finnegan charms the unit with stories from his years on the job but also unsettles them by displaying the prejudices of that past time. The case bears many similarities to the murder of Adena Watson, and Bayliss struggl
Judge Gibbons is stabbed to death outside the courthouse, and Pembleton and Bayliss quickly establish that the killer is Junior Bunk. When they bring him in, though, they are surprised to find that he has developed a tough new attitude and is not about to give up Georgia Rae. Falsone and Stivers investigate the drive-by shooting death of a parole officer and find two parties involved: an ex-con he was hassling, and Aloyisus "Pony" Johnson, a double murderer who had been sent to prison five years
The BPD starts a citywide sweep to bring in every Mahoney crew member, with the goal of arresting Georgia Rae. Stivers tells Gee that the Mahoney shooting did not occur as it was reported. The detectives find Georgia Rae dead, killed by her own people, and Bayliss takes a bullet to protect Pembleton from a shooter. As he is rushed into surgery and Gharty and Ballard recover from theirs, Gee tells Pembleton to find out what really happened. He and Falsone interrogate Lewis and then Kellerman, who