Lynette discovers who started the fire at Rick's restaurant; Bree gives Orson an ultimatum to turn himself in; Susan reconnects with Karl; Katherine finds out that Dylan is secretly meeting with her father.
Gabrielle and Carlos finally learn the truth about Ellie's "work", and they also discover the police are already onto Ellie and her drug-selling ring, and have been staking out the Solis home for some time and want to use the Solis' to arrest Ellie in a sting operation. Meanwhile, Bree declares an all-out war against Edie after learning that she's now after Orson for her latest man conquest. But when Edie does something shocking involving Orson who makes the mistake of revealing the origins of Bree's baby Benjamin, Bree is forced to come clean to the rest of the ...
Susan flirts with her painter; Bree denies all help from business partner Katherine; Lynette tries to get Tom to see the light with their trouble-making twins; Edie moves back to Wisteria Lane with a new husband; Gabrielle deals with a blind Carlos and their two overweight daughters.
Bree's long working hours effects her home life; Susan worries about her ex Mike, and her new painter boyfriend Jackson becoming friendly; Lynette fails to notice the impending doom regarding the new way she's bonded with Porter; Gabrielle fails in social status due to her life change; Suspicions grows regarding Edie's new husband, and his mysterious past.
Danielle returns to Wisteria Lane, and faces psychological warfare from Bree; Susan tries to protect her son, MJ, from a bully; Gabrielle tries to deal with cutting costs; Lynette continues to deal with Tom's decision of curing his midlife crisis by starting up a garage band with Dave; Karen and Katherine continue to investigate Dave.
Bree's success has the women feeling jealous; Mike feels he's not apart of M.J's life; Gabrielle hatches a plan to have more sex with Carlos; Dave's motives for moving to Wistera Lane continues to take shape.
Periodic flashbacks to the past five years explain the missing pieces left unanswered; Problems arise for the housewives' love lives; When Dave breaks into her home, Karen has the neighbourhood questioning her sanity.
Gabrielle has a fit when one of Carlos's wealthy massage clients, Virginia Hildebrand, makes them an offer they can't refuse, but a startling discovery leaves Gabby second guessing. Meanwhile, Lynette grows suspicious that Tom is cheating on her with the sultry Anne Schilling, a promoter who wants to book Tom's new garage band for a show. One of the Scavo twins, Porter, gets grounded for getting into trouble with the law... again. Susan and Jackson break up when she wants to continue to keep their tryst casual, while he wants to move forward with their romance. Later,...
Lynette and Tom uncover an unpleasant truth about Porter; Gabrielle suspects Carlos' best massage client, Virginia, has ulterior motives; Bree's moment of weakness with her cookbook could bring her great embarrassment and shame; Katherine's not-so-little secret is unveiled; Susan learns of Jackson's true passion; Karen's sister, Roberta, unearths a disturbing fact about Dave.
Susan deals with Mike being involved with Katherine; Porter is accused of setting the fire; Bree deals with Orson's snoring habit; Carlos learns he could get his sight back; Dave struggles with hiding his guilt.
As Carlos' sight begins to return, he begins to see what sacrifices Gabrielle made to keep her family intact, while Porter gets arrested after Dave tells the police he saw the boy coming out of the storeroom just before the fire. But when Porter tells Lynette and Tom about a separate crime that he committed by breaking into Edie's house to steal a gun to use against Annie's husband, Lynette takes great measures to try to sneak back in to Edie's house to return it unnoticed. Meanwhile, Bree deals with the revelation that Andrew'a latest beau is Orson's plastic surgeon,...