Bree and Orson return to Wisteria Lane for Gaby and Victor's fairy-tale wedding as Susan makes plans for her nuptials. Meanwhile, Lynette's estranged mother shows up on her doorstep, and Carlos makes a discovery about Edie.

While Wisteria Lane is abuzz with Gaby's wedding plans, Susan pops the question to Mike. Meanwhile, Edie schemes to get Carlos to move in with her, and Lynette has a health scare.

Susan gets lost in the woods while looking for Mike; Gaby goes to jail; and Lynette realizes she loves another man.

Gaby, annoyed that Carlos is dating Edie, does something about it; Kayla tells Tom she saw Lynette flirting with Rick; Wisteria Lane is full of gossip about the dead body found in Mrs. McCluskey's freezer; and Susan decides between Ian and Mike.

Susan calls off her wedding and realizes she must choose between Ian and Mike; Gaby decides it's time to stand by her man; and a blackout shuts down the pizza ovens at Scavo's, giving Rick an opportunity to shine. It also thaws out freezers on Wisteria Lane and lands Mrs. McCluskey in hot water.

Once again, Mike comes between Susan and Ian; the Gaby-Victor sparring match goes into the next round; and Edie's budding relationship with Carlos hits a snag. Meanwhile, Lynette is at her wit's end at the restaurant, and the ailing Tom (who's driving Mrs. McCluskey crazy at home) won't let her hire a highly qualified chef because of his checkered past.

Susan discovers a secret about her future in-laws while Mike regains more of his memories of Susan; the Scavos squabble over restaurant uniforms; and a lovelorn (if that's the word for it) Edie eyes Carlos while Gaby finally finds something to like about Victor Lang. She also meets Victor's ex-wife.

Edie gets an unexpected visit from her 8-year-old son; Gaby meets a very rich guy, but they don't exactly hit it off; Danielle's unexpected pregnancy affects not only her and Austin but Julie as well; Mike and Ian face off; and Tom and Lynette celebrate (if that's the word for it) their ninth anniversary. Rex Van De Kamp (Steven Culp) is the narrator.

Amid a medical emergency and marriage proposals, Pizzeria Scavo opens for business.

Orson opens up to Bree about his past, while Mike begins to remember his; Lynette and Tom's business relationship takes a turn for the worse after Tom hires Austin to work at the pizzeria; and Zach takes notice---and umbrage---when one of his lawyers dates Gaby.

Lynette and Tom face challenges as Pizzeria Scavo prepares for its grand opening, and Gaby can't avoid her not-so-secret admirer, Zach. Meanwhile, Alma reveals a devious plan.

Gabrielle's secret admirer is revealed; Tom's pizzeria faces an uncertain future; and Wisteria Lane gets a new resident.

Gaby accuses Carlos of trying to sabotage her new relationship with Bill; Tom and Lynette try to make Kayla feel like she's part of the family; and Bree welcomes a surprise dinner guest.

The residents of Wisteria Lane have a holiday block party; Gaby has a new love interest; and Susan's relationship with Ian kicks up a notch.

Lynette is growing more concerned about her mysterious new neighbor; Susan and Ian take their relationship up a notch, but his butler is not amused; Gaby trains young pageant hopefuls, but their mothers are not amused; and Orson's mother has some things to say that are unsettling to Bree.

Bree meets Orson's mother, although Orson doesn't like it. Meanwhile, Gaby decides to get back into modeling; Susan refuses to allow Julie to see Austin; and Lynette is suspicious of her new neighbor.

A hostage crisis at a Fairview supermarket leads to tragedy.

Carolyn Bigsby confronts Bree with Orson's hidden past while Carolyn's husband, Harvey, confides in Orson about his own; Susan professes her love for Ian while Nora professes her support for Tom; and Carlos and Gaby kiss and make up. Or do they?

Carlos and Gaby's divorce gets downright nasty, as does Susan's battle with Edie over Mike; Bree must deal with Danielle's affair with her history teacher; and Lynette must deal with Tom's "dream."

Edie moves in on the suddenly sentient Mike while Ian and Susan are off on a romantic getaway; and Lynette goes to bat for her son Parker, who's floundering in Little League. Meanwhile, Andrew Van De Kamp returns home with lurid stories of life on the street. Carlos returns home as well, not that Gaby is pleased to see him.

As Bree's honeymoon ends (with the reappearance of Andrew), Gaby encounters a new John Rowland, and Susan and Ian spend a weekend in the country. Meanwhile, Nora has something to tell Lynette about Tom.

Bree and Orson wed; Susan and Ian go on a date; Edie has an unexpected visitor; and Xiao-Mei makes a delivery.

Mike is still in a coma after being run over by Orson---who proposes to Bree. Meanwhile, Susan, who has been lovingly caring for Mike, meets Ian, who has been lovingly caring for his comatose wife; the pregnant Xiao-Mei is very demanding of Gaby, who's divorcing Carlos; and Lynette tries to embrace stepmotherhood, but Nora isn't making it easy.