Lynette finds out who was responsible for starting the fire at Rick's restaurant: the twins, Porter and Preston, but learns that Kayla was the one who inspired them to do so. She decides to take Kayla to a therapist to sort out her troubles, but Kayla threatens to go to the police and tell them who committed the crime. Bree gives Orson an ultimatum to turn himself in for running over Mike but he refuses and moves in with Edie who kisses him during a drunk act and Bree sees them through a window.
Susan meets Karl at a Lamaze class. Karl is now married to Marisa, a law professor, and tries to show off until Mike declares that he went to rehab. Gabrielle joins forces with Bob and Lee to catch her new renter, Ellie, in the act when she starts suspecting that she is a hooker. Ellie later confesses to Gabrielle that she is using her room as a tattoo parlor, but is shown hiding drugs in her drawer. Katherine finds out that Dylan is secretly meeting Wayne and gets ready for a confrontation.
Goof -- When Lynette is speaking to Kayla about giving the idea of starting the fire to the twins, in the mirror behind Lynette, you can see a man in a blue shirt.