A woman brings to the homicide unit her mystery-writer husband's videotaped declaration that his literary agent is responsible for his murder. Ballard and Gharty catch the case -- only there is no body or crime scene. Meanwhile, Munch and Bayliss investigate the death of an elderly woman that occurred during a break-in -- was it a homicide? Munch would rather leave for his weekend rendezvous with Billie Lou. Ballard and Gharty's investigation becomes a red-ball as they find evidence in the writer's office that a crime was committed. A break leads to the arrest of the literary agent and his accomplice, although Danvers can't guarantee a conviction. Falsone asks Ballard if she would like to go out Saturday night; just then the jury comes back. And a sharp-eyed juror insures that justice is done.

Ballard is annoyed when she finds out that the fact that she had a date with Falsone is around the squad room. Munch has a doctor's appointment and he's not talking about it. Dr. Griscom calls on the homicide unit when he sees a number of deaths that are related by a poison named phosphozine. The FBI steps in on the poisonings and they put MGee in charge of a task force; they consider it an act of domestic terrorism. One of the victims was a priest; two others were his parishioners. Gharty suspects the communion wine. Following this idea, wine bottles are collected from churches around the city. A needle hole is found through one of the corks. A citywide canvassing of all places where wine can be purchased is launched. Gee disagrees with the bureau's policy of keep information from the public. One possible suspect is captured; however, strange as he is, he's not the one. Through an internal leak, the media is alerted and warns the public, sparking chaos. MGee suspects the source of the

Bounty hunters shoot, killing the wrong man, as they enter a building where their fugitive---a man named Joe Errico---has shot at them (and subsequently gotten away). Gharty has vague memories of a drinking binge from the night before. Falsone and Stivers catch the bounty-hunter case. Sheppard, during her days with the fugitive squad, had dealings with the head bounty hunter. Gaffney stops Gee and MGee on their way in, Baltimore magazine wants to do a father and son piece, using the wine case as a focal point. Gee is not interested, especially about the use of the wine case. Gharty struggles as he tries to reconstruct the events of the night before. Munch is bothered by Gharty's stories of Vietnam and each grows to dislike the other - perhaps some competitiveness over Billie Lou is beginning to brew here. Bounty hunter P.J. Johnson, who was identified as the triggerman, is charged and placed in one of the holding cells, near some of his previously captured quarry. Within an hour his ba

Mike Kellerman's new vocation is private investigation, where the majority of the work involves catching cheating spouses. Falsone and Stivers catch a case where a newborn baby's body is found buried behind a motel. A young couple had checked into the room where the baby was delivered. The room was paid for using the girl's credit card. When they locate the girl (Debbie at home with her parents), she collapses and is brought to the hospital. The boy, Craig, is also located. Both say that the baby was stillborn; however, the autopsy reveals that the baby took a breath after it was born, so the death is ruled a homicide. Falsone notes that of the two, only the boy Craig seems to show any compassion for the baby. Kellerman meets Sheppard for a beer and tries to ask her about Falsone's baby case, later he asks around the squad room. Kellerman is hired to conduct his own investigation by the girl's defense team. Gee demands that Falsone and Stivers find convicting evidence before Kellerman

A body buried for 6 - 20 years is uncovered at a construction site. Munch and Lewis begin the process of trying to solve this old crime. Falsone and Ballard's relationship has heated up, and that fact becomes apparent to their fellow detectives. Sheppard returns to work, but is discouraged when Gee assigns her to desk duty. Gharty tells Billie Lou that he'll attend her bass-playing concert. Munch & Lewis with help from the ME and MGee, identify the body and then begin to piece together what happened to her. Gee lays down the law to Ballard & Falsone: they have to knock it off if they want to stay working on the same shift; they agree.

Gharty has a Vietnam flashback. Sheppard is placed back into rotation. Lewis asks Falsone to switch cases, as Lewis is still unsure about Sheppard's ability to be back on the street in the part of town where their call lies. Munch and MGee work a case where the victim was hit and run. One of the victim's possessions is a knife that has some meaning for Gharty, who later is able to recognize the tattoo found on the victim. Sheppard confronts Lewis about the case switch. She and Stivers talk more... after Stivers, working with Falsone, sees him ""go off"" on a potential witness... Munch and MGee find their hit and run vehicle, a rental SUV, whose renter claims to know nothing of the incident and says he had filed a stolen-vehicle report. Munch pulls the victim's DOD file and---for good measure---Gharty's! Munch, begins to spread doubts with the other detectives about Gharty's Vietnam experience, because the file tells him that Gharty had a less than honorable discharge. A kid, who had stol

The Internet is stage for a ritual murder, which was staged -- which was staged, or was it? The body is found the following morning and Sheppard takes the call, her first since the beating. Since Lewis can't be found, she partners with Bayliss. Second shift detectives Bonaventura and Austin catch word of the day shift's case. It seems the victim in Sheppard's case was a witness they had interviewed the day before about an online murder hoax. The detectives are informed about another murder that is scheduled for midnight. It's a red ball. The detectives try to put the clues together, but come up with nothing and must wait until the netcast begins before they can trace the killer. The trace is successful, but when they arrive at the scene, the killer has left them a computer with the words ""Ha Ha Fooled You."" Barnfather wants Bayliss reassigned as primary if something doesn't turn up soon. Sheppard goes online to flush out the killer. He advertises another murder will take place at www.i

A woman comes looking for Falsone, knowing that he solved a real old case, wants him to look into a case for her from 1972. Her parents told her that she was responsible for her younger brother's death. Despite being three years old at the time, the woman has doubts about her parents' story. So Falsone and Stivers reopen this case, which was closed by Gee when he was a new detective. The reopening of the case makes Gee think that he may not have been totally focused on the case at the time. Their investigation reveals the woman's mother used her as a scapegoat for the mother's crime. Bayliss and Ballard's case involves a body that was shot, but the victim was already dead from a drug overdose. The male sergeant at the scene piques Bayliss's interest, so they get together for drinks. Their relationship doesn't develop, because word is spreading about Bayliss being the owner of the ""In Plain Site"" web site. Bayliss begins feeling pressure about his being different and considers celibacy.

Lewis and Munch begin to investigate the death of a Buddhist monk beaten to death. Lewis isn't interested in working the case with Bayliss, whom he feels, may become too emotionally involved. Ballard and Falsone agree to call their relationship quits. Ballard and Gharty's case involves a man who was shot down in the street; the three witnesses that saw the shooter all have different recollections of his appearance. As a result, their prime suspect cannot be charged. Gee asks for Bayliss's assistance in the Buddhist murder and to Lewis's dismay, Munch abdicates his position in the investigation to Bayliss. Lewis and Bayliss take different approaches to the investigation. Bayliss's approach leads him to the man who committed the crime, but cornering his suspect leads to a showdown with guns and Bayliss fires a fatal shot. Later Bayliss tries to reconcile the shooting with his own feelings about being a Buddhist and being a cop.

In Stivers and Falsone's case, a man is found shot dead in his bed, with no signs of a struggle. Gee lobbies Barnfather to find a way to get them the ability to have some control over their FBI liaison, so they don't experience the same problems they had with the Janine McBride case. Barnfather lets Gee know that there is Captain's position opening up and he should be inline for it with no catches. Lewis lets Ballard accompany him on a bar stabbing, when she accuses him of being afraid to work with a female, since the incident with Sheppard. While she does get to help him with the initial investigation, Lewis manages to work the rest of the case on his own, leaving her to handle the details. Meanwhile, Ballard's usual partner Gharty spends a ""mental health day"" at the Waterfront Bar, drinking and proposing to Billie Lou. Stivers and Falsone discover their victim had a bad breakup with his ex-wife Eleanor Burke, and she admits to committing the crime; however, as an assistant US attorne

Falsone and Lewis investigate the murder of a man in his own backyard. The victim's nose was removed from his body. Ballard and Gharty investigate the murder of a bartender at a strip club. Canvassing the neighbors, Falsone feels that one of the neighbors isn't what she appears to be. Later when they interview her husband, he gets the same feeling. The MEs complete a record setting day of completing autopsies, but find themselves with one unidentified extra body. Munch and Bayliss get the call, but insist that until they can get a crime scene to go to, the problem isn't theirs. Griscom finds the crime scene in the morgue freezer. Ballard mentions to Gharty that he might want to consider stopping his drinking. Falsone's theory about the victim's neighbors proves true when MGee checks into the Witness Protection program. MGee's phone call puts the wheels in motion to get the family moved. Falsone and Lewis arrive just in time to take their suspect into custody and away from the Feds. The