Five years have passed since Katherine shot her ex-husband as Susan, Lynette, Bree and Gaby stood together in solidarity to protect her. Susan tries to hide her relationship with a new man; Gaby questions her abilities as a mom; Bree is on the verge of publishing her own cookbook as business partner, Katherine, grows envious; Lynette catches her teenaged twins spearheading illegal activities; and Edie returns to Wisteria Lane in jaw-dropping fashion with a new man in tow.

Unaware of Jackson's whereabouts, Susan goes to a local bar suspecting that he might be with Mike however, she soon lands herself in-trouble; meanwhile, after spending money that did not belong to her, Gabrielle attempts to get Carlos to get a job at the local country club as it pays better. Bree promotes her cook book on a radio show.

Bree's estranged daughter, Danielle, returns to Wisteria Lane and is met with a deluge of criticism. Meanwhile, Gabrielle and Susan find themselves embroiled in a catfight brought on by an altercation between their kids. To her chagrin, Lynette comes home to find Tom and Dave have formed a garage band after she told him to get rid of his old things. Finally, Katherine and Mrs. McCluskey invite Edie to lunch to press her for more information on Dave.

Bree's new found success causes the rest of the women on Wisteria Lane to feel envious. Lynette longs to return to her days as an ad-executive, and finds an outlet as Bree's marketing manager. Mike feels that he is not a big enough presence in his son's life after M.J. draws a family portrait and leaves him out. Meanwhile, Gaby comes up with a way to have more sex with Carlos.

Driven by a hidden agenda, Dave convinces Susan to throw Mrs. McCluskey a surprise party for her 70th birthday. Jackson wants to take his relationship with Susan to the next level. Gabrielle's concerned she might be pregnant. Tom tells Lynette he's sold the pizzeria. A startling reason for the bond between Bree and Katherine is revealed. And finally, an outraged Mrs. McCluskey has the entire neighborhood questioning her sanity.

Gaby is over the moon when Carlos' client makes them an offer they can't refuse, but a startling discovery leaves her second guessing. Lynette grows suspicious that Tom is cheating on her. After breaking up with Jackson, Susan tries to surprise him, only to find the surprise is on her. Meanwhile, the bond between Bree and Katherine grows. Finally, Mrs. McCluskey enlists the help of her sister Roberta (guest star Lily Tomlin) to dig up dirt on Dave.

Lynette and Tom uncover the unsettling truth about son Porter. Gabrielle suspects Carlos' best client, Virginia, has ulterior motives. Bree's moment of weakness could bring her great embarrassment and shame. Katherine's not-so-little secret is unveiled. Susan learns of Jackson's true passion. Finally, Mrs. McCluskey's sister Roberta unearths a disturbing fact about Dave.

Susan's daughter Julie comes to visit with her surprising new boyfriend. Gabrielle learns that Mrs. Hildebrand has made her and Carlos heirs of her entire fortune. A reporter looks to expose Bree's imperfections. Lynette learns Porter and Anne Schilling plan to leave Fairview and disappear. Finally, everyone has gathered at a club to see the guys play in the annual "Battle of the Bands" when a fire erupts, threatening the lives of those in attendance. Some will fall as a hero will rise.

For Gaby and Carlos, injuries sustained in the fire lead to a fortunate discovery. But for most, the consequences are less forgiving. Lynette and Tom vow to protect son Porter at any cost. Susan must learn to let go of the man she loves. Orson's attempt at a good night's sleep puts Bree in a most precarious, though amusing, position on the day of her big cooking demonstration.

Lynette takes extreme measures to protect her son. Carlos realizes the extent of Gaby's sacrifices for their family. Bree wants to prove to Andrew that she has accepted him for who he is. Katherine finds happiness, as Susan and Mike recognize the fate of their relationship. Meanwhile, Dave starts to lose his grip.

Bree clashes with Alex's mother for their sons' affections. Gabrielle urges Carlos to take a six-figure job, even though it means spending more time away from home. Susan turns to Lee for company while Jackson is away. Lynette catches Preston talking to Porter on the phone. Meanwhile, Edie grows weary of Dave, whose strange behavior hasn't abated.

Susan and Edie accidentally lock themselves in a basement; the search for Porter leads Lynette to her mother; Mike and Katherine define their relationship; Dave gets closer to exacting revenge.

When Eli Scruggs (Beau Bridges), the neighborhood handyman, passes away, the residents of Wisteria Lane realize how much he affected their lives.

Bree treats herself to a new car; Susan wants to send M.J. to the best school even though she and Mike can't afford it; Gaby tries to get back into shape; Lee wonders if he should tell Tom and Lynette some disturbing facts about Dave.

Susan gets a new job. Lynette tells Tom they need to sell Scavo's Pizzeria. Gaby discovers that Carlos' boss has a dirty little secret; Orson confronts Bree after discovering she has given Andrew a raise.

Bree tells Lynette she will help Tom find a job; Carlos' adulterous boss puts Gaby in a precarious situation; after a chance encounter with an old acquaintance, Edie looks into Dave's past.

Susan tries to impress a teacher at work, Gaby talks Carlos into hiring Lynette, Edie continues to look into Dave's past.

Bree contemplates selling her business in order to revive her marriage. Meanwhile, Lynette is threatened at work; Katherine is caught in an unforseen circumstance; and Edie's worst fear begins to come true.

Edie becomes the subject as the other housewives reminisce about her: with Susan recalling the first time they met; Lynnette remembers an unforgettable night; Gaby remembers an evening of friendly competition; and Bree remembers how thoughtful she was towards Orson.

Carlos finds Lynette in a precarious position, which she chooses to hide from Tom, and Gabrielle hastily covers for Tom's coy behavior. Orson tries to hide the truth about his wounds from Bree, while Katherine confesses to Mike, which leads to a surprising realization. In the meantime, Susan confides her dark secret in Dave.

Bree sinks to a new low to retain the best lawyer, and Gabrielle's vanity is put to the test when she makes a deal with her daughter Juanita. Meanwhile, Lynette and Tom negotiate sex, and Katherine deceives Mike to win his heart. Jackson (guest star Gale Harold) walks back into Susan's life with a proposal, and an unexpected visit sends Dave to do some bargaining of his own.

Bree goes to extremes to hide her true intentions from Orson, while Susan and Jackson put on an act for the authorities. Lynette is shocked at the lengths Tom will go to in order to look younger, and Katherine masks the truth from Mike, afraid to lose him. Meanwhile, Dave is on edge when he learns a key witness to his misdeeds surfaces.

Gabrielle becomes upset when Carlos offers to have his not-so-innocent niece, Ana, come and stay with them for a while and disrupts their routine. Meanwhile, Lynette becomes angry at Tom as he desperately tries to hold on to his youth. The brutal battle of the sexes between Orson and Bree gets nasty when Orson discovers what she's been up to. Elsewhere, Detectives Lyons and Collins make headway in the arson fire.

Lynette adapts to Tom's decision to go back to school, Orson takes a beating that Bree cannot comprehend, Gabrielle's niece moves to Wisteria Lane, and Susan and MJ's lives are in grave danger at the hands of Dave.

While Bree gives Chuck a ride, a smell becomes noticeable; Gabrielle seeks out a priest in order to help Carlos with his problem; Ben Faulkner, a new neighbor, meets Renee; Susan withdraws from her friends because of what happened to Alejandro.

Gabrielle teaches Carlos how to dance on a strip pole; Susan seeks out a punishment for feeling guilty; Renee bonds with one of the customers at a senior center; Tom and Lynette wonder why Parker was at a late night party; Bree discovers Chuck's past.

Lee has a problem with Jenny; Susan and Carlos attempt to find the people responsible for tagging the wall with graffiti; Lynette grows suspicious of Lydia and her fiancé.

While at a yoga class, Lynette and Renee spy on Jane, Tom's new girlfriend; Gabrielle tries to affect change at a PTA meeting; Bree discovers what Danielle is up to; Susan battles with art class teacher Andre Zeller.

Tom and Lynette visit a couples counselor about their separation; Bree tries to help a city council about the homeless; Carlos is in a guilty situation; Susan is embarrassed about Andre's students being naked in class.

Susan grows suspicious about Amy's affair with Andre; a delivery man tries to deliver a package for Lynette; a man speaks to a sponsor from A.A. about a blackout; the housewives are in the woods with the shovels, but they're being watched.

Bree is stunned when she learns who dug up the body of Gaby's stepfather; jealousy rears its ugly head when Lynette begins to spread untruths to daughter Penny about Tom's new girlfriend; Gaby and Carlos must convince Lee and Bob that Juanita and Celia aren't the bad seeds that they used to be when they want to name them in their will as guardians; and Susan desperately searches her inner self to find what inspires her in order to better her art and impress her hard-to-please art teacher, Andre.

Detective Chuck Vance begins harassing Bree as his suspicions about her involvement in the disappearance of Alejandro grow; after using the murder of Gaby's stepfather as inspiration for her art school projects, Susan must find a way to graciously decline art school teacher Andre's (Miguel Ferrer) invitation to display and sell her paintings at a gallery showing; when Carlos's drinking gets in the way of his ability to work, Gaby goes to The Office in an effort to save his business from losing a multi-million dollar account; and on the occasion of their 22-year anniversary, Lynette comes up with a plan to try to salvage her marriage to Tom.

Gabrielle, thinking the worst, goes on a frenzied search for Carlos after he unexpectedly checks out of rehab. Meanwhile, a desolate Bree goes on a drinking binge and finds herself in a desperate situation.

"What's to Discuss, Old Friend" is the 167th episode of the ABC television series Desperate Housewives. It is the tenth episode of the show's eighth season and was broadcast on January 8, 2012.

While in Oklahoma, Susan learns that the late Alejandro has been sexually abusing his 15 year old step-daughter, Marisa, just like he abused Gabby years earlier. Meanwhile, Bree gets an unpleasant surprise from a man she meets in a bar, Gabrielle tries to bluff her way through a business dinner in order to woo a potential client for Carlos, and Mike catches Ben doing something he shouldn't do to try to salvage his faltering real estate project.

Karen McCluskey finds out about Bree's sex life and interferes, Bree bumps into one of her many conquests unexpectedly, Gabby shares her past with the widow of Alejandro, and after introducing them, Renee ends up paying the price when the date between her hairdresser and Lynette doesn't go well.

Bree's sexual escapades are getting out of hand and help comes from an unexpected source, Susan learns that Julie is pregnant, and Gabby has to deal with a situation at Juanita's school.

Susan discovers the identity of the father of Julie's baby, and Orson makes it his duty to nurse Bree back to health. When Mrs. McCluskey throws Roy out of the house, Gabrielle takes him in and is reluctant to help get them back together when he proves to be an invaluable disciplinarian to her kids. Meanwhile, after getting used to her alone time, Lynette is furious when Porter and Preston are evicted from their apartment and try to move back home, and Mike informs Renee of Ben's dire circumstances with a loan shark.

Susan offers to help the father of Julie's baby raise the child; Bree agrees to go to Maine with Orson - perhaps for good; Karen pleads with Gaby not to tell Roy about her condition; and the loan shark who threatened Ben sets out to ruin Renee.

Susan talks Mike into going to the police when she discovers that Ben's loan shark is out to get him; Mrs. McCluskey, who's dying of cancer, asks Bree to help her commit suicide; Tom's girlfriend, Jane, stuns Lynette at Penny's birthday party; Carlos behaves oddly on his first day back at work, and Gaby is worried.

On the day of a beloved Wisteria Lane resident's funeral, each of the housewives recalls the effect this person had on her life. Meanwhile, Bree is stunned when she's called in for questioning about the murder of Gaby's stepfather, Alejandro.

Bree is not so sure about Andrew's upcoming marriage; Gabrielle tries to find work in an employment agency in order to teach Carlos and the kids a lesson; Lynette plans to win back Tom at any cost; Susan's parenting skills concern Julie; Ben asks Renee to marry him.

Carlos gets concerned about Gabrielle's new job; an affair makes Susan suspicious; the police ask a hotel owner about Alejandro's whereabouts; Bree needs a lawyer's help in order to get her charges of Alejandro Perez's murder cleared. Jane served to Lynette their divorce papers.

With Mike gone, Susan attempts to build a car for MJ's father-and-son school soapbox derby; Bree's attorney, Trip, learns of her previous drunken sexual spree and needs her to come clean about it in order to help strengthen her case; Lynette tries to cause some negative friction between Tom and his girlfriend, Jane, by flirting with his boss and getting him to pile more work on her estranged husband; Gaby is furious with Carlos when he tries to poach one of her rich, personal shopper clients (Doris Roberts) and talk her into helping with his newly formed charity organization; and Renee discovers that Ben is keeping a secret from her about his involvement with Bree -- and the body found at his work site.

In the penultimate episode leading into the two-hour finale of this landmark series, as her trial nears, Bree begins to fall for her attorney, Trip; Susan becomes concerned when Julie doubts Porter's commitment to be a hands-on father to their unborn baby; as Tom gets closer to being transferred to India for his job - thanks to Lynette - she begins to have second thoughts and tries to convince his boss to rescind the move; and the ladies are shocked about Gaby's nonchalant attitude as Bree continues to stand trial and take the fall for Carlos in the murder of Alejandro.

Bree's trial finally comes to an end with a surprise confession. Tom takes steps to finalize his divorce.

Everything that begins must eventually end. This episode of beginnings and endings walks us both backwards and forwards as we take our final stroll down Wisteria Lane.