Susan and Edie accidentally lock themselves in a basement; Bree encounters someone who'll stand up to her; Gaby loses control of her girls and turns to Carlos for help; Lynette's search for Porter leads to her mom; Katherine and Mike define their relationship; and Dave's plan for revenge takes a new turn after Edie throws him out.

Bree buys a new car while Lynette and Tom resolve to sell his Mustang for extra cash; Susan is determined to send MJ to a school she and Mike can't afford; Gaby joins Edie's "boot camp" to get back into shape; and Lee wrestles with telling Lynette and Tom some disturbing facts about Dave.