Eisa Davis

Holmes and Watson investigate a homicide in which the victim was murdered in a manner reminiscent of the crimes of an infamous, and already incarcerated, serial killer. Also, Sherlock and Joan tutor Detective Bell for a police sergeant's exam that would lead to a promotion and a post at another precinct.

Gordon and Bullock set out to stop Gerald Crane a biology teacher who has been harvesting the glands of his murder victims. Meanwhile after finding herself in an unusual setting Mooney continues plotting to gain power and Falcone attempts to change Maroni's plan for the Penguin. Then Bruce takes a treacherous hike.

In the series finale, Carcetti maps out a damage-control scenario with the police brass in the wake of a startling revelation from Pearlman and Daniels. Their choice: clean up the mess...or hide the dirt. With his leads predictably drying up, McNulty asks Landsman to pull police off the homeless case--until a fresh homicide ramps up the investigation. A frustrated Haynes finds his concerns about Templeton falling on increasingly deaf ears. Convinced he has the upper hand but caught in a legal quandary, Levy plays a cat-and-mouse game with Pearlman. Bubbles debates whether to greenlight a newspaper story about his life; Dukie seeks out an old mentor for a loan; Marlo oversees a new co-op order as he maps out his next move. As the officers stage an Irish wake for another dearly departed officer, the seeds of the future are sown throughout Baltimore.

With Steintorf ordering Rawls to initiate 'creative' remedies for the rising crime rate, Freamon's vigilance pays off with a promising lead, sending Sydnor and the department into overdrive. Although Daniels is originally delighted, a further probe with Pearlman reveals some troubling source information. McNulty, feeling betrayed, doesn't feel like sharing in Freamon's celebration; Michael is suspicious about his latest assignment; Haynes gets some fresh eyes to help with fact-checking; Namond's debating skills make Colvin proud; Davis points a finger at Levy and the courts; Bubbles recounts a recent temptation overcome.

Zoe thinks she's seen a ghost. Plus, her mother comes to town in hopes of reconciling with Zoe, and Lavon won't authorize Lemon and George's dream home purchase.